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Sample records for carcinoma hepatocelular variedad

  1. AFLATOXINAS Y SU ASOCIACIÓN CON EL DESARROLLO DE CARCINOMA HEPATOCELULAR

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    José Manuel Ornelas Aguirre

    2016-07-01

    Full Text Available El carcinoma hepatocelular (CHC se encuentra dentro de los tipos de cáncer que más muertes generan al año. Es una neoplasia con una incidencia creciente en todo el mundo. Es el tumor primario del hígado más frecuente y constituye el 90% de éstos. Se sabe que el desarrollo de CHC puede ser por múltiples etiologías, una de ellas es la exposición crónica a las aflatoxinas, especialmente a la aflatoxina B1 (AFB1, esta es una micotoxina producida por hongos del genero Aspergillus. La AFB1 produce mutación en el codón 249, exón 7 del gen P53. La AFB1 se encuentra en alimentos contaminados como granos de maíz, arroz y cacahuate, y se ha encontrado una alta relación entre el consumo de estos alimentos y el desarrollo de CHC en países de Asia y África. El presente trabajo tiene como objetivo recopilar la información existente sobre los mecanismos de carcinogenicidad de la AFB1 que lleva al desarrollo del CHC. Palabras Clave: Carcinoma hepatocelular, Aflatoxina B1, Micotoxina, Aflatoxicosis

  2. Carcinoma hepatocelular, alcoholismo y virus de la hepatitis C Hepatocellular carcinoma, alcoholism and hepatitis C virus infection

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    John Jairo Orrego B.

    1994-02-01

    Full Text Available Presentamos el caso de un paciente de 64 años, con el antecedente de consumo excesivo de alcohol, quien consulta por dolor localizado en el cuadrante superior derecho, de varios meses de evolución. En la laparoscopia se aprecian cirrosis macronodular y una masa localizada en el lóbulo Izquierdo del hígado, previamente detectada por ecografía. El estudio histológico demostró un carcinoma hepatocelular. Los estudios metabólicos, Inmunológicos y sexológicos permitieron documentar solamente la asociación con anticuerpos contra el virus de la Hepatitis C.

    We report on the case of a sixty-four year old man who drank alcohol chronically. For several months he had suffered pain in his right upper abdominal quadrant. At laparoscopy macronodular cirrhosis and a mass 10-calized on the left hepatic lobe were observed; the mass had previously been identified by ultrasound examination. Histologic examination of the lesion established the presence of a hepatocellular carcinoma. Metabolic, Immunologic and serologic studies documented only the association with antibodies to hepatitis C virus.

  3. Implante subcutáneo de un carcinoma hepatocelular tras la punción aspiración con aguja fina Subcutaneous seeding of hepatocellular carcinoma after fine-needle percutaneous biopsy

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    D. Martínez Ramos

    2007-06-01

    Full Text Available Los implantes subcutáneos son una complicación rara tras la punción aspiración con aguja fina de los carcinomas hepatocelulares. Los autores describen un caso de implante subcutáneo neoplásico en una mujer de 70 años con cirrosis hepática por virus C complicada con un carcinoma hepatocelular. Se efectuó una punción aspiración con aguja fina en el segmento II hepático. El implante tumoral se desarrolló en el trayecto de la punción aspiración. La tumoración subcutánea fue extirpada quirúrgicamente y el estudio anatomopatológico confirmó que se trataba de un carcinoma hepatocelular bien diferenciado.Subcutaneous tumor seeding after fine-needle percutaneous biopsy for hepatocellular carcinoma is a rarely seen complication. The authors describe a case of subcutaneous neoplastic seeding in a 70-year-old woman with chronic hepatitis C virus complicated by hepatocellular carcinoma. Ultrasonically guided fine-needle aspiration biopsy was performed in segment II of the liver. The neoplastic seeding developed along the needle track used to carry out the fine-needle biopsy. The subcutaneous tumor was excised, and histological examination revealed a well-differentiated hepatocellular carcinoma.

  4. Historia natural del carcinoma hepatocelular en una cohorte de pacientes de un hospital comarcal Natural history of hepatocellular carcinoma in a cohort of patients from a county hospital

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    M. Vergara

    2008-11-01

    Full Text Available Introducción: el carcinoma hepatocelular (CHC es una neoplasia con una elevada incidencia y una alta mortalidad. Objetivo: nuestro objetivo es la descripción de la historia natural de una cohorte de pacientes con CHC e identificar variables asociadas a supervivencia. Material y métodos: estudio retrospectivo y descriptivo de pacientes diagnosticados de CHC entre 1995-2002. Las variables cualitativas se expresaron mediante frecuencias y porcentajes y las cuantitativas con mediana y desviación típica. La supervivencia se estimó mediante el método de Kaplan Meyer y la prueba de Log Rank. Resultados: se analizaron un total de 154 pacientes con CHC. La ratio hombre-mujer fue de 2,9/1. La edad media de 68 ± 9 años. El 82% de los pacientes fueron exitus en un tiempo medio de seguimiento de 28 meses. La mediana de supervivencia fue de 21,5 meses (IC 95%: 16,98-26,04. Se realizó tratamiento con intención curativa en un 40,3% y el resto tratamiento paliativo. Las variables asociadas a la supervivencia fueron: presencia o no de ascitis, el número de lesiones en el momento del diagnóstico y si el tratamiento realizado fue con intención curativa o no. No hubieron diferencias estadísticamente significativas respecto a: sexo, edad, etiología de la cirrosis y estadio de Child en el momento del diagnóstico. Conclusiones: los factores asociados a una menor supervivencia en los pacientes con carcinoma hepatocelular fueron la presencia de ascitis y el número de lesiones en el momento del diagnóstico. La realización de tratamiento con intención curativa se asocia a una mayor supervivencia.Background: hepatocellular carcinoma (HCC is a cancer with high incidence and mortality. Objective: our aim was to describe the natural history of a patient cohort with HCC, and to identify the factors associated with survival. Patients and methods: a retrospective and descriptive study of patients diagnosed with HCC between 1995 and 2002. Qualitative variables

  5. Carcinoma hepatocelular en una paciente con virus de inmunodeficiencia humana/sida y cirrosis hepática

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    Ernesto Arias Beatón

    2015-05-01

    Full Text Available Se presenta el caso clínico de una paciente de 42 años con positividad del virus de inmunodeficiencia humana desde hacía 3 años, quien acudió a la consulta de Cirugía del Hospital Gubernamental de Mbabane, en Swazilandia, por presentar un tumor abdominal doloroso en el cuadrante superior derecho, unido a astenia, anorexia y ligera ictericia. Fue evaluada en la consulta de Oncología y, luego de realizarle los exámenes complementarios necesarios, se le diagnosticó cáncer hepatocelular asociado a virus de inmunodeficiencia humana/sida y cirrosis hepática en estadio III. Posteriormente fue remitida a Sudáfrica para recibir radioterapia y quimioterapia combinadas

  6. Recurrence of hepatocellular carcinoma after liver transplantation presenting as anastomotic biliary stricture Presentación del carcinoma hepatocelular recurrente tras el trasplante de hígado en forma de estenosis biliar anastomótica

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    S. Y. Chen

    2008-07-01

    Full Text Available A 52-year-old man visited our hospital complaining of anorexia and fatigue two months after receiving orthotopic liver transplantation for hepatocellular carcinoma. A laboratory investigation demonstrated a clinical picture of obstructive jaundice. T-tube cholangiography showed biliary stricture over the anastomotic site. Percutaneous transluminal balloon dilatation and stenting was attempted but failed. Magnetic resonance cholangiography showed possible tumor recurrence over the site of the anastomotic biliary stricture. A biopsy sample was obtained via ultrasound-guided aspiration and histopathological study revealed inflammatory and fibrotic changes. With high suspicion of recurrence of the hepatocellular carcinoma, surgical exploration was performed and an intraoperative frozen section proved the recurrence. We thus diagnosed this case as a recurrence of hepatocellular carcinoma after liver transplantation. To our knowledge, there have been no previous reports of early tumor recurrence after liver transplantation being the cause of an anastomotic biliary stricture.Un varón de 52 años visitó nuestro hospital quejándose de anorexia y fatiga a los dos meses de haber recibido un trasplante hepático ortotópico a causa de un carcinoma hepatocelular. La analítica mostró un cuadro clínico de ictericia obstructiva. La colangiografía con tubo en T mostró una estenosis biliar sobre la anastomosis. Se intentó una dilatación transluminal percutánea con globo y colocación de endoprótesis, que fracasó. La colangiografía por resonancia magnética mostró una posible recurrencia tumoral sobre el lugar de la estenosis biliar anastomótica. Se extrajo una muestra de biopsia mediante aspiración bajo guía ecográfica y el estudio histopatológico mostró alteraciones inflamatorias y fibróticas. Al sospecharse la recurrencia del carcinoma hepatocelular, se realizó una exploración quirúrgica; un corte intraoperatorio congelado demostr

  7. Tumoral response factors after radiofrequency ablation of hepatocellular carcinoma in cirrhotic liver Factores de respuesta tumoral tras ablación mediante radiofrecuencia del carcinoma hepatocelular sobre cirrosis

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    J. Calleja Kempin

    2005-10-01

    Full Text Available Objective: hepatocellular carcinoma (HCC ablation by radiofrequency (RFA is a novel technique with a great variety of methods whose efficacy and predictive factors have not been completely studied. Some of the main predictive factors in this type of treatment are analyzed in the present study. Patients and methods: ninety-three patients with hepatocellular carcinoma over cirrhosis, and with no indication for surgical resection were treated by RFA. Two different types of electrodes were used for RFA (refrigerated-"Cool-Tip" and perfusion with saline solution, the approach was percutaneous, by laparoscopy or laparotomy. Results: overall survival at 1, 2 and 3 years was 88, 81, and 76%, with a free-disease survival (FDS of 66, 31 and 17%, respectively. For tumors less than 3 cm, FDS at 1,2 and 3 years was 74, 44 and 30%, while for more than 3 cm in size FDS was 55, 12 and 0% (p = 0.02. FDS for HCC with one nodule was 70, 36 and 22%, and for more than one nodule it decreased to 50, 17 and 0% at 1, 2 and 3 years, respectively (p = 0.07. Surprisingly, the method employed for RFA has a main influence in FDS, with 0% at 3 years for perfusion electrodes and 26% for cool-tip electrodes at the same period. Conclusions: in this series, overall survival at three years was relatively high; however, tumoral size, number of nodules and RFS method were independent variables associated with disease-free survival.Objetivo: la ablación por radiofrecuencia del hepatocarcinoma (ARF es una técnica de reciente adquisición, cuya eficacia y factores predictivos no han sido suficientemente evaluados. El presente estudio fue diseñado para este análisis. Pacientes y métodos: se han tratado 93 pacientes con hepatocarcinoma sobre hígado cirrótico sin criterios de resección ni de trasplante hepático. El tratamiento se realizó mediante abordaje percutáneo, laparoscópico o mediante laparotomía con dos tipos de electrodos de radiofrecuencia, electrodo refrigerado y

  8. Factors related to survival in hepatocellular carcinoma in the geographic area of Sabadell (Catalonia, Spain Factores relacionados con la supervivencia en el carcinoma hepatocelular en el área geográfica de Sabadell

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    Mireia Miquel

    2012-05-01

    Full Text Available Background: hepatocellular carcinoma (HCC is a very frequent tumor. Screening for the disease is effective, but the prognostic factors are difficult to evaluate. Objectives: 1. To determine epidemiological data and the clinical course of HCC in our setting. 2. To compare patient survival according to whether screening is performed or not. 3. To evaluate survival prognostic factors. Patients and methods: data on the epidemiology and clinical course of patients diagnosed with HCC were collected on a prospective basis (January 2004-December 2006. Two groups were considered according to whether screening had been performed (group A or not (group B. Results: a total of 110 patients were diagnosed with HCC (70% males. The most common etiology of cirrhosis was hepatitis C (56.1%, and 69% presented mild liver failure (Child-Pugh grade A. The median follow-up was 1.8 years. Fifty-one percent had been subjected to screening. The diagnosis of HCC was established by imaging techniques in 48.2% of the cases, and by histological criteria in 51.8%. The median tumor size was 23 mm in group A and 28 mm in group B (p = 0.005. Treatment with curative intent was provided in 72% of the cases in group A and in 48% in group B (p = 0.011. The median overall survival was 1.99 years-2.67 years in group A and 1.75 years in group B (p = 0.05. The multivariate analysis of overall survival showed the type of treatment (OR = 2.82 95%CI: 1.3-6.12, p = 0.009 and liver function (OR = 1.71 95%CI: 1.1-2.68, p = 0.020 to be independent predictors of survival. Conclusions: screening allows the diagnosis of smaller lesions and a higher percentage of curative treatments. The degree of liver function and the provision of curative treatment are independent predictors of survival.Introducción: el carcinoma hepatocelular (CHC es un tumor muy prevalente. Su cribado es eficaz, pero los factores pronósticos son difíciles de evaluar. Objetivos: 1. Conocer datos epidemiológicos y evoluci

  9. Detecção imunoistoquímica das oncoproteínas p21ras, c-myc E p53 no carcinoma hepatocelular e no tecido hepático não-neoplásico Immunohistochemical detection of p21ras, c-myc and p53 oncoproteins in hepatocellular carcinoma and in non-neoplastic liver tissue

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    Vera Lucia Nunes Pannain

    2004-12-01

    Full Text Available RACIONAL: A hepatocarcinogênese é um processo no qual as alterações genéticas e epigenéticas são bem conhecidas em modelos animais, mas carece de estudos no homem. OBJETIVOS: Analisar a freqüência das oncoproteínas p21ras, c-myc e p53 no carcinoma hepatocelular e no fígado não-neoplásico. Verificar ainda a associação destas oncoproteínas com os padrões e graus histológicos, assim como com as infecções pelos vírus das hepatites B e C. MÉTODOS: Foi analisada por método imunoistoquímico a detecção das oncoproteínas p21ras, c-myc e p53 em 47 casos de carcinoma hepatocelular e no tecido não-neoplásico circunjacente ao tumor (40 casos. RESULTADOS: As oncoproteínas p21ras, c-myc e p53 foram detectadas, respectivamente, em 44,7%, 53,2% e 36,2% dos casos de carcinoma hepatocelular. A imunorreatividade do p21ras e c-myc mostrou uma associação significativa. Contudo, não houve associação significativa entre a detecção do p21ras, c-myc e p53 com os diferentes graus e padrões histológicos, nem tampouco com as infecções pelos vírus das hepatites B e C. A mesma associação significativa entre o p21ras e c-myc foi encontrada no tecido não-neoplásico dos casos de cirrose em relação aos que não apresentaram cirrose, enquanto que o p53 foi negativo em todos os casos. CONCLUSÕES: A imunorreatividade das oncoproteínas p21ras, c-myc e p53 corrobora evidências prévias de sua detecção no carcinoma hepatocelular, o que sugere poder haver participação destas proteínas na hepatocarcinogênese humana. A significativa associação entre as proteínas p21ras, c-myc e p53 no carcinoma hepatocelular e na cirrose pode apontar uma interação entre as mesmas, sobretudo na hepatocarcinogênese pela via da cirrose.BACKGROUND: Genetic and epigenetic alterations have been described in animal hepatocarcinogenesis models but need to be studied in human being. AIMS: To assess the immunoreactivity of p21ras, c-myc and p53

  10. Carcinoma hepatocelular: impacto do tempo em lista e das formas de tratamento pré-operatório na sobrevida do transplante de fígado cadavérico na era pré-MELD em um centro no Brasil Hepatocellular carcinoma: impact of waiting list and pre-operative treatment strategies on survival of cadaveric liver transplantation in pre-MELD era in one center in Brazil

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    Alexandre Coutinho Teixeira de Freitas

    2007-09-01

    Full Text Available RACIONAL: Atualmente, o transplante hepático é a principal opção terapêutica para doentes com cirrose hepática associada a carcinoma hepatocelular. OBJETIVOS: Analisar a sobrevida em 3 meses e 1 ano de pacientes com e sem carcinoma hepatocelular submetidos a transplante hepático cadavérico. MÉTODOS: Foram revisados os prontuários dos pacientes submetidos a transplante hepático cadavérico no Hospital de Clínicas da Universidade Federal do Paraná no período entre 5 de janeiro de 2001 e 17 de fevereiro de 2006. Os pacientes foram divididos em 2 grupos - acometidos e não-acometidos de carcinoma hepatocelular - e analisados em relação à sobrevida em 3 meses e em 1 ano. Também foram comparados em relação ao sexo e à idade do doador e do receptor, a causa da cirrose, a classificação de Child-Pugh e o escore do MELD no momento do transplante, o tempo de isquemia morna e isquemia fria, o número de unidades de concentrado de hemácias transfundidas durante o transplante, o tempo de permanência na UTI e o tempo de internação. RESULTADOS: Foram analisados 146 casos de transplante hepático: 75 foram excluídos devido a dados incompletos no prontuário e 71 foram incluídos no estudo. A sobrevida geral em 3 meses e 1 ano foi de 77,4% e 74,6%, respectivamente. Os acometidos por carcinoma hepatocelular (n = 12 apresentaram sobrevida em 3 meses e 1 ano de 100%, significantemente maior que os não-acometidos (n = 59; 72,8% e 69,49%, respectivamente. O índice médio do MELD, da classificação de Child-Pugh e o número médio de concentrado de hemácias transfundidas foram significantemente maiores nos pacientes não-acometidos. Também foi observada maior percentagem de pacientes classificados como Child-Pugh B e C e de pacientes com diagnóstico de cirrose por outras causas nos pacientes não acometidos pela neoplasia. Nos doentes com carcinoma hepatocelular foi observada maior percentagem de indivíduos classificados como Child

  11. Presentación diferencial de ARN mensajeros e identificación del gen selenocisteína liasa en células de carcinoma hepatocelular con expresión transitoria de la proteína core del virus de la hepatitis C.

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    Jesús Orlando Yepes

    2006-06-01

    Full Text Available Introducción. El virus de la hepatitis C se asocia a diversas hepatopatías como hepatitis aguda, hepatitis crónica, esteatosis, cirrosis y carcinoma hepatocelular. Numerosos estudios han explorado mecanismos virales implicados en el establecimiento de la infección persistente y en las propiedades oncogénicas e inmunomoduladoras de la proteína core del virus de la hepatitis C. Las investigaciones orientadas a evaluar los cambios en la expresión de genes celulares endógenos inducidos por la proteína core son importantes para identificar genes candidatos responsables de los mecanismos de patogenicidad del virus de la hepatitis C. Objetivos. Comparar perfiles de expresión e identificar genes celulares endógenos en la línea celular derivada de carcinoma hepatocelular humano, HepG2, con expresión transitoria de la proteína core del virus de la hepatitis C. Materiales y métodos. Se utilizó la técnica de presentación diferencial de ARN mensajero por RT-PCR en células HepG2 con y sin expresión transitoria de la proteína core del virus de la hepatitis C o de la proteína verde fluorescente, obtenidas previamente con el sistema de expresión del Semliki Forest Virus, mediante transducción de partículas recombinantes rSFVCore o rSFV-GFP. Resultados. Se observaron diferencias en las intensidades de las bandas de ARNm expresadas en células HepG2 transducidas con rSFV-Core comparadas con células sin transducir y trasducidas con rSFV-GFP. Un ARNm de 258 pb expresado diferencialmente en células HepG2 transducidas con rSFV-Core fue clonado e identificado como selenocisteína liasa. Conclusión. Los resultados confirman que la expresión de la proteína core del virus de la hepatitis C se asocia con cambios en la expresión de ARN mensajeros específicos, incluido al gen selenocisteina liasa, el cual puede estar involucrado en la fisiopatología del carcinoma hepatocelular.

  12. Papel de la vía de señalización de la insulina y mTOR en la infección por el virus de la Hepatitis C. Implicación en el desarrollo de carcinoma hepatocelular

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    García-Valdecasas Merino, Marta María

    2016-01-01

    Introducción El virus de la hepatitis C (VHC) promueve resistencia a la insulina (RI) y el desarrollo de esteatosis. Al progresar la enfermedad puede provocar la aparición de fibrosis hepática, cirrosis y carcinoma hepatocelular (HCC). Los mecanismos moleculares por los que el VHC induce la RI no están del todo descritos, por tanto es necesario estudiar como la vía de señalización de la insulina es modificada por la infección. Además, la vía de señalización de la insulina activa la vía de...

  13. Recurrence of hepatocellular carcinoma after liver transplantation presenting as anastomotic biliary stricture Presentación del carcinoma hepatocelular recurrente tras el trasplante de hígado en forma de estenosis biliar anastomótica

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    S. Y. Chen; C. H. Lin; J. C. Yu; C. Y. Yu; C. B. Hsieh

    2008-01-01

    A 52-year-old man visited our hospital complaining of anorexia and fatigue two months after receiving orthotopic liver transplantation for hepatocellular carcinoma. A laboratory investigation demonstrated a clinical picture of obstructive jaundice. T-tube cholangiography showed biliary stricture over the anastomotic site. Percutaneous transluminal balloon dilatation and stenting was attempted but failed. Magnetic resonance cholangiography showed possible tumor recurrence over the site of the ...

  14. variedad azul

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    R. I. Corona González

    2005-01-01

    Full Text Available En este trabajo se muestra un estudio del efecto del pH, la temperatura y la concentración de polifructosas de Agave tequilana weber variedad azul sobre la producción de inulinasas, con una cepa de Saccharomyces sp. en un reactor de 16 litros. Las condiciones óptimas del proceso se obtuvieron al aplicar un diseño factorial 23 en el cual temperatura, pH y concentración de azúcares de Agave tequilana se probaron con dos niveles 15 y 30°C, 4 y 5.5 y 20 y 30 g/L respectivamente. Las condiciones con las que se alcanzó la concentración más alta de inulinasas (240.6 U/ml fueron: temperatura 30°C, pH 5.5 y 30 g/L de polifructosas de Agave tequilana

  15. Cholangitis and multiple liver abscesses after percutaneous ethanol injection (PEI for recurrent hepatocellular carcinoma (HCC Colangitis y abscesos hepáticos múltiples tras la inyección percutánea de etanol (IPE en el tratamiento del carcinoma hepatocelular recurrente

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    Fernando Macias-García

    2013-02-01

    Full Text Available Percutaneous ablation procedures are minimally invasive treatments for unresectable early stage hepatocellular carcinoma (HCC. These techniques are usually safe, but rare and even fatal complications have been described. We present a fatal result after percutaneous ethanol injection (PEI for the treatment of a recurrent HCC in a non-cirrhotic liver, with subsequent development of diffuse cholangitis and multiple liver abscesses. Although percutaneous drainage and intensive antibiotic treatment were employed, the patient finally died. We discuss about the etiology and the physiopathology of this rare complication in which the therapeutic options are limited and usually unsuccessful.

  16. Nova variedade de Menta arvensis

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    Abelardo Rodrigues Lima

    1952-09-01

    Full Text Available No quarto ano dos trabalhos de seleção com a menta japonêsa, foi encontrado um "seedling", o M. A. 701, que se destacou pela resistência à ferrugem e pela sua rusticidade. Os caracteres botânicos dessa variedade comercial, principalmente hábito vegetativo, coloração das fôlhas e das hastes, a tornam completa' mente distinta da variedade original. Esta distinção se confirma e acentua quando se compara a natureza dos componentes do óleo essencial da menta "Campinas" M. A. 701, descrita no presente trabalho, com a menta japonêsa comum. A maior produtividade da nova variedade comparada com a da menta japonesa comum foi desde logo também constatada pelos primeiros lavradores, a quem foram enviadas pequenas quantidades de rizomas, para plantio experimental. Foram cultivados em 1949-50 cêrca de 12 hectares; cm 1950-51, cêrca de 900 ha, e o prognóstico é que essa variedade tende a substituir totalmente a menta japonêsa anteriormente cultivada em São Paulo, devido ao seu maior valor econômico.A seedling, designated M.A.701, remarkable for its vigor and resistance to rust, was discovered during the fourth year of selection of Japanese mint (Mentha arvensis L. subsp. haplocalix Briquet var. piperascens Holmes or forma piperascens Malinvaud. The botanical characters of the variety derived from this seedling, especially the vegetative habit and colouring of leaves and stems, make it quite different from the original variety. This difference is enhanced, when we compare the nature of the essential oil components of "Campinas" M.A.701, as described in the present paper, with that of the common Japanese mint. The higher yield of the new variety, compared with that of the common Japanese mint, was soon confirmed by the first cultivators, to whom small quantities of rhizomes were sent for experimental planting. About 12 hectars were cultivated em 1949/50 and about 900 hectars in 1950/51. It is expected that the new variety will, on account

  17. SERUM LEPTIN LEVENS AND HEPATOCELLULAR CARCINOMA: REVIEW ARTICLE.

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    Andrighetto, Luiza Vitelo; Poziomyck, Aline Kirjner

    2016-01-01

    Hepatocellular carcinoma is one of the most frequent types of malignant tumors in the world. There is growing evidence of the relationship between it development and obesity. The mechanism that links obesity to cancer is still not fully understood; however, it is essential to the understanding the adipose tissue in metabolic changes related to obesity and hepatocellular carcinoma. To review the influence of serum leptin levels in patients with hepatocelular carcinoma. Systematic review of the literature based on the methodology of the Cochrane Institute. The search for articles was in the database: Science Direct, Scielo, Medline, Lilacs e Pubmed. The key words used were hepatocellular carcinoma, leptin, adipokine. After evaluation of individual studies, were selected seven studies. The results previously studied are still inconsistent and contradictory, and leptin can be effectively involved in the occurrence and development of hepatocellular carcinoma. Therefore, it is necessary to develop prospective, well-designed and conducted focusing on the role and specific mechanisms of this hormone in patients with hepatocellular carcinoma, so that new correlations can be properly supported. O carcinoma hepatocelular é um dos tipos mais frequentes de tumores malignos no mundo. Há crescentes evidências da relação entre o seu desenvolvimento e a obesidade. O mecanismo que os relaciona ainda não é completamente entendido. Entretanto é essencial a compreensão do tecido adiposo nas alterações metabólicas relacionadas à obesidade e ao câncer. Revisar a influência dos níveis séricos de leptina em pacientes com carcinoma hepatocelular. Trata-se de revisão bibliográfica baseada na metodologia do Instituto Cochrane; a busca de dados foi realizada na base de dados Science Direct, Scielo, Medline, Lilacs e Pubmed, empregando as seguintes descritores: hepatocellular carcinoma, leptin, adipokine. Após avaliação individual dos artigos selecionaram-se sete estudos

  18. Variedades da Democracia no Brasil

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    Fernando Bizzarro

    Full Text Available Resumo Neste artigo apresentamos resultados coletados pelo projeto Variedades da Democracia para o Brasil. Descrevemos a evolução histórica da democracia brasileira entre 1900 e 2015 enfocando seus cinco principais componentes (eleitoral, liberal, participativo, deliberativo e igualitário e duas dimensões adjacentes ao regime (corrupção e partidos políticos. Por fim, nós comparamos os dados para o Brasil com resultados obtidos para outros países da América do Sul. A análise dos dados aponta: a. a existência de uma trajetória “em espiral” dos regimes políticos no Brasil, na qual novas experiências democráticas tendem a superar experiências anteriores em todos os quesitos; b. os avanços e limites da experiência democrática contemporânea em que se combinam bons resultados nos indicadores eleitoral, liberal e deliberativo da democracia, e resultados menos elevados nos componentes igualitário e participativo do regime, bem como em suas dimensões adjacentes.

  19. Múltiplas modernidades ou variedade da modernidade?

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    Volker H. Schmidt

    2007-06-01

    Full Text Available O artigo apresenta uma avaliação crítica do conceito de "múltiplas modernidades" que ganhou terreno na Sociologia na década de 1990. Ele rejeita essa noção como tanto conceitualmente equivocada quanto empiricamente infundada e propõe um conceito alternativo - de "variedades da modernidade" -, que se acredita resolver mais facilmente as questões substantivas do conceito anterior, ao mesmo tempo em que permite que se fale de "modernidade" no singular. A principal fonte de inspiração para esse conceito alternativo são as variedades do paradigma capitalista que guia a literatura da Nova Economia Política; uma de suas vantagens em relação ao paradigma das múltiplas modernidades é o foco nas instituições, muito mais que nas vagas e pouco explicativas noções de "cultura" e "diferença cultural". Entretanto, a abordagem de variedades da modernidade que siga essa via tem que ser muito mais ampla e compreensiva e deve, portanto, ser mais difícil de desenvolver e de aplicar que o paradigma de variedades do capitalismo. Mas mesmo que em última instância ela prove-se impraticável, a mera consideração de seus pré-requisitos metodológicos ainda promete fornecer valiosas sugestões para os pesquisadores da modernidade.

  20. Calidad de consumo en variedades de boniato

    Directory of Open Access Journals (Sweden)

    Sergio Caballo

    2011-04-01

    Full Text Available El presente trabajo describe una experiencia de degustación de cuatro variedades de boniatos, Beauregard, INIA- Arapey, Morada INTA, y el clon E9227.1, en dos formas de cocción, hervidos y horneados, realizada en INIA y LATU. Dos paneles pilotos de consumidores de ambas instituciones, evaluaron los atributos de sabor, textura, color y agrado general, empleando una escala hedónica de nueve puntos. El aspecto comercial fue evaluado estableciendo el orden de preferencia de las variedades sin cocinar. Se realizaron ensayos fisicoquímicos de fructosa, glucosa, sacarosa y maltosa sobre el material crudo y de materia seca y sólidos solubles totales a las muestras crudas y cocidas. El Morada se diferenció por su alto contenido de materia seca y sólidos solubles totales (SST del material procesado. El análisis estadístico  determinó mayor preferencia en aspecto comercial de Morada y clon E9227.1, como también un mayor valor en sabor y agrado general, tanto en la forma hervida como horneada. El valor obtenido en el atributo de color fue mayor en las variedades de pulpa naranja, Beauregard y clon E9227.1. Estos resultados  podrían tomarse como orientativos de las preferencias de consumidores uruguayos y una referencia para el mejoramiento genético, la producción, el comercio y el consumo. Sería recomendable ajustar medidas analíticas que se correlacionen con las preferencias sensoriales.

  1. Algoritmo de lanczos na variedade de grassmann

    OpenAIRE

    Lopes, Ana Paula Ferreira Fernandes; Viamonte, Ana Júlia; Pascoal, António José

    2008-01-01

    O problema do cálculo de valores próprios, vectores próprios e subespaços invariantes está presente em áreas tão diversas como Engenharia, Física, Ciências de Computação e Matemática. Considerando a importância deste problema em tantas aplicações práticas, não é de surpreender que tenha sido e continue a ser objecto de intensa investigação, dando corpo a uma literatura muito vasta. Desenvolvemos um novo algoritmo de Lanczos na variedade de Grassmann. Este trabalho surgiu na ...

  2. Resistencia a los repilos de distintas variedades de olivo

    OpenAIRE

    Trapero Casas, Antonio; López Doncel, Luis Miguel; Oliveira, R.; Gutiérrez, F.; Navarro, N.; Alsalimiya, Mohammed; Benali, A.; Ávila de La Calle, A.; Bouhmidi, K.; Moral, J.; Roca, L.F.

    2005-01-01

    El repilo, la antracnosis y el emplomado son tres enfermedades conocidas comúnmente con el término repilos. Actualmente estos repilos causan en España más del 10% de las pérdidas de la cosecha y un deterioro notable de la calidad del aceite. Por ello, el estudio de las distintas variedades de olivo presentes en el mundo en cuanto a resistencia/susceptibilidad a estas enfermedades y la obtención de nuevas variedades resistentes sigue siendo un objetivo prioritario entre los investigadores en e...

  3. Carboidratos e carotenoides totais em duas variedades de mangarito

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    Ana Paula Sato Ferreira

    2014-05-01

    Full Text Available O objetivo deste trabalho foi avaliar a composição de carboidratos e carotenoides em rizomas mãe e filhos das variedades de mangarito (Xanthosoma riedelianum pequeno e gigante. Amostras dos rizomas coletadas ao longo do ciclo cultural e após 90 dias de armazenamento foram avaliadas quanto aos teores de carboidratos e carotenoides totais. Os rizomas apresentaram aumento no teor de carboidratos, e o rizoma-mãe da variedade pequeno apresentou acréscimos lineares no teor de carotenoides, ao longo do cultivo. O armazenamento reduz os teores de carboidratos e de carotenoides totais em todos os rizomas.

  4. Metastização óssea de carcinoma hepatocelular – A propósito de um caso clínico

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    Sónia Martins

    2017-12-01

    The present case alerts to the importance of the exclusion of pathological fractures in patients with a personal history of neoplasia, which, if happens, could alter the approach and prognosis of these patients.

  5. Carcinoma hepatocelular (CHC. Factores de riesgo, diagnóstico y tratamiento. Hospital Pablo Tobón Uribe, 1995-2000

    Directory of Open Access Journals (Sweden)

    Gonzálo Correa Arango

    2001-04-01

    Full Text Available

    Por estudios epidemiológicos sabemos que el CHC es el octavo
    cáncer más frecuente en el mundo; también que es 3 veces más
    frecuente en hombres que en mujeres tanto en el mundo como en
    Antioquia (1,2 y que se presentan 350.000 casos nuevos cada año.
    Nuestro objetivo es describir el comportamiento clínico y epidemiológico del CHC en la población usuaria del HPTU entre enero de 1995 y julio del 2000.

     

     

  6. Limitación de la conservación de variedades nativas por variedades mejoradas: Estudio de caso de la papa en los Andes centrales del Ecuador

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    MSc. María Cecilia Dávila

    2018-04-01

    Full Text Available La conservación de la biodiversidad para la alimentación y la agricultura, es una actividad importante a nivel mundial para asegurar la seguridad alimentaria y nutricional, pero dicha actividad está siendo limitada por varios factores. Este estudio de caso analiza cómo la adopción de variedades mejoradas de papa limita la conservación de la diversidad de las variedades nativas a nivel de granja o chakra en seis comunidades indígenas en los Andes centrales ecuatorianos. Los resultados muestran que la adopción de variedades mejoradas ha desplazado una amplia gama de variedades locales tradicionales de los campos de agricultores que, junto con las condiciones socioeconómicas y ambientales que caracterizaron el sitio de estudio, han socavado la diversidad genética de variedades cultivadas de papa en las fincas. Palabras clave: Conservación en finca, diversidad de papa, variedades mejoradas, variedades nativas.

  7. Diversidad genética de las variedades de arroz FLAR liberadas entre 2003-2014.

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    Luis Eduardo Berrio-Orozco

    2016-06-01

    Full Text Available El objetivo de este trabajo fue determinar la base genética, el coeficiente de parentesco y la diversidad genética de las variedades de arroz liberadas entre el 2003 - 2014 en trece países miembros del Fondo Latinoamericano para Arroz de Riego (FLAR. Para ello, se analizaron las genealogías de 51 variedades, en el Centro Internacional de Agricultura Tropical (CIAT, Palmira, Colombia, durante los años 2014 y 2015. La variabilidad genética de las variedades estuvo representada por 120 ancestrales (2,4 ancestral/variedad; 33 de estos contribuyeron con el 83,9% de sus genes, de los cuales tres (ancestrales que originaron IR8 aportaron el 35,6% de sus genes. También se mostró que el coeficiente de parentesco (rxy entre las diferentes variedades comerciales varió de 0,03 (muy poco relacionadas, hasta 0,99 (altamente relacionadas. El promedio de todas las 51 variedades fue de (rxy 0,19. A nivel de variedades por país, se encontró que el promedio fue variable, el mínimo lo obtuvo Ecuador con 0,13, y el máximo fue de 0,31 para las variedades de Venezuela. El análisis de agrupamiento separó a los genotipos en catorce grupos distintos, donde existen materiales bastante relacionados y otros muy poco relacionados. Estos resultados muestran que se ha obtenido una ampliación de la base genética. 

  8. Estudio del contenido de ácidos grasos superiores en veinte variedades tropicales de soya

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    Boris Kocelj Ramírez

    2009-05-01

    Full Text Available Muy poco se sabe acerca del contenido de ácidos grasos en las diferentes variedades tropicales de soya. En este trabajo se estudiaron veinte variedades tropicales de soya en lo referente a su contenido de aceite y en ácidos grasos. Se determinaros las propiedades físicas y químicas del aceite que lo caracteizan como comestible. El contenido cualitativo y cuantitativo de ácidos grasos individuales se investigó utilizando la técnica de cromatografía de gases. Se analizaron los éteres correspondientes, obtenidos por esterificación catalítica completa con trifluoruro de Boro-metanol. Se encontraron diferencias significativas entre las propiedades de los aceites de las variedades estudiadas. Se identificaron los ácidos: palmítico, esteárico, linoleico y linolénico

  9. Desarrollo de pasta untable de aceituna variedad Sevillana

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    Callejas, Julio

    2009-12-01

    Full Text Available The development of a spreadable olive paste was carried out. Sevillian or Gordal green olive varieties were used in the paste. Pastes were prepared by crushing olives after pit removal and adding preservatives (potassium solvate and sodium benzoate, and antioxidants (T. B. H. Q. to crushed olives. These were characterized by recording microbial, physical, chemical and sensory measurements and shelf life was evaluated over three months of storage at room temperature (18 °C and under refrigeration (4 °C. The final microbial count of the paste was less than 100 ufc/ml. Sensory testing demonstrated that it was acceptable and storage conditions did not significantly affect the product.The pH of the paste decreased with time (4.3 to 4.17, resulting in increased acidity which was affected by storage temperature. The peroxide index, increased with time, (from 5 to 27 meq peroxide/kg oil. However, the pastes were not perceived to be rancid after sensory testing. Regarding the color, the main change observed was a darkening of the paste, as determined using the parameter L*. The shelf life of the olive paste was 90 days either under refrigeration or at room temperature.Este estudio consistió en desarrollar una pasta untable de aceituna, variedad verde Sevillana o Gordal. La elaboración de la pasta consistió en deshuesar las aceitunas, triturarlas y adicionarles conservantes (sorbato de potasio y benzoato de sodio y antioxidante (T. B. H. Q., finalmente se envasaron. Ésta fue caracterizada microbiológica, físico-química y sensorialmente, y se evaluó su comportamiento durante 3 meses de almacenamiento a temperatura ambiente (18 °C y en refrigeración (4 °C. El recuento microbiano de la pasta es menor a 100 ufc/ml. Sensorialmente el producto fue aceptado y esta condición no varió durante el almacenamiento, al igual que el contenido de aceite (70% y aw (0,90. El pH diminuye con el tiempo, por lo tanto, la acidez aumenta; viéndose afectado por

  10. Potencial agroindustrial de cáscaras de mango (Mangifera indica variedades Keitt y Tommy Atkins

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    Liliana Serna Cock

    2015-04-01

    Full Text Available En el estudio se evaluó el potencial agroindustrial de las cáscaras de mango de las variedades Keitt y Tommy Atkins, por sus características de rendimientos, contenidos en compuestos fenólicos totales y composición proximal (materia seca, proteína, extracto etéreo, cenizas, fibras dietéticas y energía bruta. Las cáscaras se liofilizaron con el fin de preservar sus compuestos antioxidantes. Se utilizó un diseño unifactorial con dos niveles (variedades y los datos se presentan como media ± desviación estándar (P = 0.05. Con el procesamiento artesanal se produjeron 13.5 ± 0.48% de cáscaras para la variedad Tommy Atkins y 16.1 ± 0.5% para la variedad Keitt, con materia seca de 18 y 17%, respectivamente. Por sus contenidos de materia seca, estos residuos agroindustriales tienen un alto potencial para desarrollar productos de valor agregado. Ambas variedades presentaron cáscara con alto contenido de fibras soluble e insoluble (Keitt 22.1%bs y Tommy Atkins19.9% bs. Se concluye que las cáscaras de mango de estas variedades tienen potencial como ingrediente o suplemento alimentario y en la formulación de alimentos funcionales prebióticos, ya que son una excelente fuente de fibra dietética y de compuestos fenólicos (> 3000 mg/100 g de MS.

  11. Problemas de clasificación de curvas en variedades riemannianas

    OpenAIRE

    Fernández Mateos, Víctor Gonzalo

    2011-01-01

    En este trabajo se estudia el problema de congruencia de curvas en variedades riemannianas y se determinan invariantes que permiten decidir de modo eficiente por métodos computacionales cuándo dos tales curvas son congruentes, al menos localmente. En el caso de las variedades de curvatura constante, se estudia el conjunto de clases de equivalencia de jets de curvas hasta un orden dado módulo el grupo de isometrías. Se da también una interpretación geométrica de la curvatura total de una...

  12. Formas armónicas con valores en un fibrado vectorial e inmersiones de variedades riemannianas

    OpenAIRE

    Llauce Santamaría, Edwin Edilberto

    2014-01-01

    El propósito de este trabajo es discutir la aplicación de la teoría de las formas armónicas con valores en un fibrado vectorial y su relación con las inmersiones en una variedad riemanniana. Sea M una variedad riemanniana y E un fibrado vectorial riemanniano sobre M, entonces podemos definir de manera natural el operador laplaciano en las formas diferenciales con valores en E y expresaremos el producto escalar ⟨θ, θ⟩, donde θ es una p-forma con valores en E, en términos de la curvatura y la d...

  13. ENSINO DE ESPANHOL NO BRASIL: O CASO DAS VARIEDADES LINGÜÍSTICAS

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    Bruno Rafael Costa Venancio da Silva

    2009-03-01

    Full Text Available RESUMO Este artigo tem a intenção de proporcionar uma visão geral do ensino das variedades lingüísticas da língua espanhola no Brasil através de estudos realizados sobre as representações que as línguas trazem aos seus “aprendentes” em relação ao prestígio e a credibilidade que cada região falante da língua espanhola impõe às instituições de ensino médio e superior no momento de eleger uma variedade lingüística, os materiais didáticos utilizados em nosso país e os fatores econômicos que envolvem seu ensino. Além dessa visão geral sobre os problemas que permeiam o ensino de espanhol em nosso país, mostrar-se-á as variedades mais recorrentes da língua espanhola através de atividades e explicações teóricas das variantes trazidas pelos livros didáticos com o intuito de desmistificar a idéia já fossilizada nos alunos, tanto de ensino médio, superior e de cursos de idiomas, os mitos existentes em relação ao aprendizado de variedades latino-americanas, em especial a falada pelo bloco rio-platense (Argentina. Paraguai e Uruguai. Palavras-chave: Variedades Lingüísticas, Ensino de Espanhol e Espanhol no Brasil. ENSEÑANZA DEL ESPAÑOL EN BRASIL: EL CASO DE LAS VARIEDADES LINGÜÍSTICAS RESUMEN Este artículo tiene la intención de proporcionar una visión general de la enseñanza de las variedades linguísticas de la lengua española en brasil a través de estudios realizados sobre las representaciones que las lenguas traen a sus “aprendientes” en relación al prestigio y a la credibilidad que cada región hablante de la lengua española impone a las instituciones de enseñanza secundaria y superior en el momento de elegir una variedad lingüística, los materiales didácticos utililzados en nuestro país y de factores económicos que involucrados en su enseñanza. además de esa visión general sobre los problemas que rodean la enseñanza del español en nuestro país, se considera importante revelar las

  14. Interpretación geométrica de algunas variedades de Schubert

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    Juan F. Escamilla

    2012-03-01

    Full Text Available En este artículo se dan interpretaciones geométricas de las variedades de Schubert de los Grassmannianos G(2,4, G(3,5 y G(2,5, y algunas de sus interpretaciones en la geometría enumerativa

  15. VIABILIDADE DO PÓLEN EM VARIEDADES DE LARANJA DOCE POLLEN VIABILITY IN SWEET ORANGE VARIETIES

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    Edson Tobias Domingues

    1999-01-01

    Full Text Available Uma vez que a polinização é um dos pontos decisivos para o crescimento e desenvolvimento do fruto, contribuindo com os gametas masculinos para a fecundação e determinando, na maioria das vezes, a fixação dos frutos em citros, torna-se necessário conhecer o grau de esterilidade masculina nas diferentes variedades de laranja doce para sua possível utilização em programas de melhoramento. A esterilidade é limitante para programas que envolvam a hibridação sexual, por outro lado possui sua importância econômica em citros induzindo menor número de sementes por fruto em certas variedades. Com a finalidade de caracterizar 44 variedades de laranja doce (Citrus sinensis [L.] osbeck quanto à viabilidade do pólen, foram coletadas anteras das variedades enxertadas sobre tangerineira Cleópatra. As variedades estudadas pertencem aos principais grupos de laranja doce: com acidez (como a laranja 'Pêra', de baixa acidez (como a laranja 'Lima', com umbigo (como a laranja 'Bahia' e sangüíneas (como a laranja 'Rubi Blood'. O percentual de pólen viável foi avaliado por meio da coloração com carmim acético a 25% e contagem sob microscópio ótico. Foram observados valores que variaram desde 12,0% para a 'Pêra Sem Sementes' até 88,8% para a variedade 'Hamlin Reserva'. Os clones de laranja 'Hamlin' mostraram maior percentual de pólen viável. Não foi observada presença de pólen para as variedades produtoras de laranjas de umbigo, originadas da variedade Bahia. As variedades 'Pêra', 'Valência' e 'Natal', as quais são as principais cultivares da citricultura paulista e nacional, apresentaram baixos percentuais de pólen viável.Pollination is one of the most critical points in fruit growth and development, contributing with male gametes for fertilization and determine, greatly, fruit setting in citrus. It is necessary to evaluate male sterility in sweet orange varieties for their possible use in breeding programs. The sterility limits

  16. CARACTERIZACIÓN ISOENZIMÁTICA DE NUEVE VARIEDADES BOTÁNICAS DE Tigridia pavonia (L. f.) DC

    OpenAIRE

    Amaury M. Arzate-Fernández

    2008-01-01

    Se estudiaron los patrones de bandeo isoenzimáticos (PBI) de nueve variedades botánicas de Tigridia pavonia (L. f.) DC., especie nativa de México con un alto potencial ornamental. Las variedades fueron recolectadas en tres municipios del Estado de México: Tenancingo (2100 m), Temascaltepec (2250 m) y Temoaya (2600 m). Como fuente de extracción de proteínas se usaron tejidos foliares de cada variedad. En los corrimientos se empleó la técnica de electroforesis horizontal en geles de almidón (SG...

  17. Análise da variedade de produto na indústria automotiva brasileira

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    Diego de Castro Fettermann

    2015-08-01

    Full Text Available A indústria automobilística tem apresentado uma maior variedade de produtos na tentativa de melhor atender as necessidades dos clientes. Entretanto, nem sempre a maior variedade de produtos está associada a maior quantidade de vendas, visto que o custos de produção tendem a aumentar com elevados níveis de variedade. O objetivo deste trabalho é identificar a associação entre a variedade dos automóveis no mercado brasileiro e a venda de veículos. A amostra representa o ano de 2013 e incorpora 94,35% do volume de licenciamentos de automóveis no Brasil, somando um total de 118 diferentes modelos analisados. Os resultados apresentados confirmam que a variedade dos automóveis disponibilizada no Brasil está associada significativamente com a venda de veículos. Além disto, de acordo com o segmento de mercado (entrada, compacto, sedan, utilitário e SUV, também foi analisada a associação entre a variedade de produto e a quantidade de vendas. Foi identificada correlação positiva e significativa ao nível de 5% em todas as categorias, com exceção dos veículos do tipo SUV. Entre esses segmentos de mercado, foi identificada que a variedade disponibilizada possui maior associação nos segmentos de automóveis de entrada e utilitários. Diante destes resultados, pode-se considerar que no mercado brasileiro a variedade de produtos apresenta forte associação com as vendas na indústria automobilística, diferentemente do apresentado em estudos internacionais, podendo contribuir para as definições estratégicas de atuação das empresas. The automobile industry has shown a greater variety of products in an attempt to better meet customer needs. However, not always the greatest product variety is associated with a higher amount of sales, since the production costs tend to increase with higher levels of variety. The objective of this work is to identify the association between the variety of vehicles in the Brazilian market and the sale

  18. Teor de bixina em quatro variedades de Bixa orellana L. cultivadas na Paraíba

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    José Maria Barbosa-Filho

    Full Text Available Neste trabalho foi verificado o teor de Óleos, sólidos e bixina em sementes de quatro variedades de Bixa orellana L. cultivadas na Paraíba: "Casca verde", "Casca vermelha", Bico de calango" e "Grão preto". Os melhores resultados foram obtidos com os tipos "Casca verde" e "Casca vermelha" que apresentaram um rendimento em bixina pura, cristalina, de 1,3 e 1,1%, respectivamente.

  19. IACuba 37: Nueva variedad de arroz, para las condiciones de riego.

    Directory of Open Access Journals (Sweden)

    René Pérez Polanco

    2014-12-01

    Full Text Available La variedad IACuba-37 fue obtenida a partir del cruzamiento, IACuba-16//J104/2064; después de obtenida la población producto de dicho cruzamiento, fue conducida por el método masal modificado hasta llevarla a la homocigosis, se obtuvo entre varias línea, la 4544, la que fue estudiada en los ensayos de rendimiento de todo el País y por sus resultados, resultó aprobada como nueva variedad de arroz para las condiciones de riego por el Instituto de Investigaciones de Granos de Cuba. La nueva variedad en condiciones de investigación produce rendimiento agrícola medio de 8.4 y 5.5 t/ha en frío y primavera respectivamente, en condiciones de producción tuvo rendimiento de 8.9 t/ha; además el ciclo de germinación a cosecha está en el rango de 112- 137 días, posee granos cristalinos, los que se parten poco en el molino, produce el 59.97 % de granos enteros, es resistente a Tagosodes orizicolus y presenta resistencia intermedia a la Pyricularia grisea; esta variedad contribuirá al incremento de la producción en este cereal; por su resistencia a las plagas, permite disminuir el uso de plaguicidas y por ende existirá una menor contaminación ambiental, además ayudará a fortalecer la estructura varietal en el cultivo del arroz.

  20. Diagnose nutricional de variedades de cana-de-açúcar em argissolos

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    Gilson Moura Filho

    2014-11-01

    Full Text Available A diagnose foliar é um dos métodos mais utilizados para se avaliar a demanda de nutrientes na cultura da cana-de-açúcar, contribuindo para um manejo melhor de fertilizantes. Objetivou-se avaliar o estado nutricional de variedades de cana-de-açúcar através da análise foliar e a mensuração dos teores foliares de macro e micronutrientes. Foram avaliadas as seguintes variedades: RB92579, RB867515, SP81-3250, VAT90-212, VAT90-61, SP83-2847, RB863129, RB931011, RB931566 e RB855113, em dois tipos de solo: Argisssolo Amarelo Distrocoeso Fragipânico (PAdx1 e Argisssolo Amarelo Distrocoeso Abrúptico Fragipânico (PAdx2 na Usina Cansanção de Sinimbú, Jequia da Praia-AL. O delineamento foi o de blocos casualizados arranjado em um fatorial de 2 x 10 consistindo de 10 variedades e quatro repetições para cada solo em estudo, quando foram avaliados os seguintes nutrientes: N, P, K, Ca, Mg, S, Zn, Fe, Mn, Cu e B. O PAdx2 foi o solo que disponibilizou, às plantas, maior quantidade de nutrientes em relação aos nutrientes P, Ca, Mg, Zn e Fe. A variedade SP81-3250 apresentou o melhor desempenho quanto ao teor foliar de nutrientes (K, S, Fe, Mn e Cu seguida pela RB931011, VAT90-61 e RB867515.

  1. Caracterización estructural y térmica de almidones provenientes de diferentes variedades de papa

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    Oscar Hernando Pardo C

    2013-12-01

    Full Text Available Utilizando análisis fisicoquímico, estructural y térmico, se evaluaron almidones de las variedades de papa Parda Pastusa (P, Tuquerreña (T, ICA Huila (IH, ICA Puracé (IP, ICA Única (IU, Criolla Latina (C y R-12 (R, cultivadas en el departamento de Boyacá, Colombia. En cada una de ellas se determinaron los contenidos de ceniza y proteína siguiendo métodos de la AOAC, humedad utilizando un analizador, estructura cristalina mediante difracción de rayos-X (DRX y propiedades térmicas utilizando calorimetría diferencial de barrido (DSC. Se encontraron diferencias significativas (P < 0.05 entre los contenidos de humedad en almidones. El almidón de la variedad IU presentó el mayor contenido de ceniza y el de la variedad T, el menor. Los difractogramas mostraron para todas las variedades patrones de cristalinidad tipo B; no obstante el almidón de las variedades IP, P, IU, T y IH presentó un patrón más cristalino que el de las variedades C y R. Los termogramas de los almidones mostraron el primer y segundo pico endotérmico, entre 123 y 163 J/g y entre 141 y 213.3 J/g, respectivamente, para las variedades IP, P, IU, T y IH; mientras que para los almidones de las variedades C y R estos valores fueron entre 68 y 77 J/g y entre 334 y 358 J/g, respectivamente.

  2. Mejora genética participativa de la variedad criolla de frijol "Sacapobres"

    Directory of Open Access Journals (Sweden)

    Rodolfo Araya-Villalobos

    2006-01-01

    Full Text Available Agricultores experimentadores de la Región Brunca de Costa Rica solicitaron en el año 1999, al Programa de Investigación y Transferencia de Tecnología Agropecuaria en frijol (PITTA Frijol, la mejora genética de la variedad criolla Sacapobres, una de las principales variedades criollas de la Región Brunca, que posee precocidad (60 días a cosecha, superando en más de diez días a la variedad mejorada más precoz y alto potencial de rendimiento en grano (no había podido ser sustituida por las variedades mejoradas en sus campos de producción, pero de alta emisión de guías y acame. En el Centro Internacional de Agricultura Tropical (CIAT y la Escuela Agrícola Panamericana Zamorano, se efectuaron hibridaciones con esta variedad criolla. La selección de los materiales segregantes se inició en los años 2000 y 2001, en Costa Rica y se basó en la metodología de fitomejoramiento participativo (FP. Los sitios de selección fueron fincas de agricultores y una estación experimental. El principal criterio empleado por los agricultores fue la arquitectura erecta (ausencia o poca emisión de guías y sin acame para facilitar el tránsito por el terreno en las labores de deshierba y fumigación, seguido del tipo, tamaño y color de grano e incidencia de patógenos. Se seleccionaron, en el año 2005, dos líneas promisorias, que pasarán a la etapa de validación. Se describe la estrategia de selección en FP, la genealogía de los progenitores empleados y se concluye sobre el futuro mejoramiento de Sacapobres

  3. Susceptibilidad a insectos en selecciones y variedades de annona muricata l. y persea americana m. en Puerto Rico

    Directory of Open Access Journals (Sweden)

    Irma Cabrera

    2001-01-01

    Full Text Available En Puerto Rico se han reportado varios insectos en las guanábanas (Annona muricata L. y los aguacates (Persea americana M, sin embargo los de mayor importancia son el barrenador de la semilla Bephratelloides cubensis (A. y Apate monacha (F. en A. muricata y Pseudacysta persea (F. en P. americana. El objetivo principal de esta investigación fue determinar la incidencia de B. cubensis y A. monacha en seis selecciones de guanábana y en siete variedades de aguacate. De las evaluaciones realizadas en A. muricata, se observó que las selecciones IV-10, VII-14 y VI-1 mostraron la mayor incidencia y la IV-16 mostró la menor incidencia de B. cubensis en relación al número de barrenos por fruta. En cuanto a la incidencia de A. monacha en A. muricata las selecciones IV-16, IV-2, IV-3, VII-14 presentaron la mayor incidencia de barrenos por árbol. En las evaluaciones realizadas en Persea americana se seleccionaron las variedades Ávila, Semil 34, Wilson Popenoe, Pollock, Candelaria, Semil 43 y Butler como las variedades comerciales más sembradas en Puerto Rico. Se observó que la variedad Avila obtuvo el mayor número de huevos, ninfas, hembras y machos de P. persea por hojas comparadas con las demás variedades. Respecto al número de hojas infestadas por árbol se encontró valores significativos (P≤0,01 en la variedad Avila. Resultando tener un 90% de las hojas dañadas. No se observó que las variedades evaluadas tuviese baja o ninguna preferencia a P. Persea

  4. Rendimiento y valor nutricional de tres variedades de sorgo dulce cultivadas en cuatro ambientes de Durango

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    Rafael Jiménez Ocampo

    2017-04-01

    Full Text Available El sorgo dulce muestra alto rendimiento de forraje para la alimentación de rumiantes. El objetivo fue evaluar el rendimiento y calidad forrajera de tres variedades de sorgo en Durango. En 2014, se evaluaron las variedades Lico, TOM 3 y Mercedes, en la Colonia Hidalgo (CH, Campo Experimental Valle del Guadiana (CEVAG, La Soledad (LS y La Goma (LG. El diseño experimental fue completamente aleatorio con arreglo factorial y cinco repeticiones. Se evaluó forraje verde (FV, forraje seco (FS, proteína cruda (PC, digestibilidad verdadera in vitro (DIVMS, fibra detergente neutra (FDN, fibra detergente ácida (FDA, lignina (L, celulosa (Cel, hemicelulosa (HE, valor relativo (VRF y calidad relativa del forraje (CRF. Se observaron diferencias significativas (P≤0.01 y 0.05 entre ambientes y variedades para FV, FS, L, VRF y CRF y entre ambientes para PC, FDN, FDA, CEL, HE y DIVMS. En CEVAG, se registró el mayor rendimiento de FV (75.9 t ha-1 y FS (12.4 t ha-1. El valor más alto de PC se obtuvo en LG (10 %; mientras que la DIVMS fue alta en LS (78.2 % y más baja en LG (63.9 %. El contenido de L fue más alto en CH (6.3 % y LG (6.2 %; mientras que, en LS fue de 3.4 %. Exceptuando LG, en todos los ambientes se obtuvo alta calidad forrajera (CRF= 106.7 a 135.0 %. El sorgo es una opción forrajera en Durango, aunque debe cuidarse la fecha de siembra y cosecha, control de insectos, riego y fertilización para incrementar el rendimiento y calidad nutricional.

  5. RESPUESTA DE 12 VARIEDADES DE TRIGO A LA SALINIDAD EN LAS ETAPAS INICIALES DEL CRECIMIENTO

    OpenAIRE

    L. Argentel; L. M. González; R. Plana

    2006-01-01

    Con el objetivo de analizar la respuesta varietal del cultivo de trigo a la salinidad en las etapas iniciales del crecimiento de las plántulas, se montó un experimento con 12 variedades, aplicando dos niveles de NaCl en la solución. Las variables evaluadas fueron la absorción de agua por las semillas, altura de las plantas y longitud de la raíz, y la acumulación de biomasas fresca y seca. Mediante un análisis de componentes principales, se establecieron los indicadores de mayor contribución a...

  6. Estudio de las variedades de olivo cultivadas en España

    OpenAIRE

    Barranco Navero, Diego

    1984-01-01

    Estudio realizado por el Departamento de Pomología de la E.T.S. de Ingenieros Agrónomos de la Universidad de Córdoba, en el que se pretende realizar la prospección de los cultivares autóctonos de las diferentes zonas oleícolas de España, identificar las variedades localizadas, definir sus áreas de difusión y recopilar la información local existente sobre sus características agronómicas y tecnológicas; y, por último, introducir en colección los cultivares considerados diferentes.

  7. Variedades del voto: hacia una sociología plural del sufragio particular

    OpenAIRE

    Sonnleitner, Willibald

    2017-01-01

    Resumen En México, las relaciones inestables entre las bases socio-territoriales del desarrollo socio-económico y del voto desafían las teorías clásicas de la modernización. Para comprender el comportamiento contradictorio de la participación electoral hay que explorar las variedades del sufragio en distintos contextos, niveles y escalas, y considerar la diversidad de formas de movilización ciudadana. Como lo muestra la sociología empírica del voto, éste puede apoyarse en dispositivos de tipo...

  8. CONSTITUYENTES VOLÁTILES DE DOS VARIEDADES DE GUAYABA (Psidium guajava L.: Palmira ICA-1 y Glum Sali

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    Clara E Quijano C

    2010-08-01

    Full Text Available Los constituyentes volátiles de la pulpa de dos variedades de guayaba (Psidium guajava L (Palmira ICA-1 y Glum Salí, fueron obtenidos por extracción L-L (pentano: diclorometano 1:1; los extractos concentrados se fraccionaron por Cromatografía de Columna y se analizaron por CGAR Y CGAR-EM. De la variedad Palmira - ICA-1 se identificaron 86 compuestos, siendo mayoritarios el acetato de cinamilo, el acetato de (Z 3-hexenilo y el alcohol cinnamílico. En la variedad Glum Sali, se determinaron 77 constituyentes, de los cuales predominaron cuantitativamente el (E-2-hexenal, el hexanal y el tetradecano. La principal diferencia en la composición de volátiles entre las dos variedades es el alto contenido de esteres en la primera variedad, mientras que en la Glum Sali predominaron los hidrocarburos y los aldehidos C(,. De los compuestos volátiles identificados en este trabajo, la 4- hidroxi-4-metil-2-pentanona, la 3-heptanona, el 3-hidroxibutanoato de etilo, el acetato de 2-hidroxietilo, el 1,2-propanodiol, el 1,2-etanodiol, el acetato de 3-metilbutilo y el 3-metil-2 butanol son reportados por primera vez como constituyentes del aroma de guayaba.

  9. Variedades de batatinha (Solanum tuberosum L.. I - Comportamento de 12 variedades procedentes da Holanda, Alemanha e Suécia Behavior of twelve potato varieties from European sources

    Directory of Open Access Journals (Sweden)

    O. J. Boock

    1956-01-01

    Full Text Available No presente trabalho são relatadas experiências com 12 variedades de batatinha (Solanum tuberosum L., recebidas da Holanda (Prinslander, Irene, Froma e Barima, Alemanha (Merkur, Sabina, Linda e Concordia e Suécia Konsuragis, Eigenheimer, Voran e Jätte-Bintje. Essas experiências, em número de seis, das quais três no chamado período "da sêca" (março-julho e três no "das águas" (setembro-janeiro, foram executadas nas localidades de Campinas, Louveira o Capão Bonito, no Estado de São Paulo. Ficou evidenciado o seguinte: a dado o bom estado de brotação dos tubérculos, as porcentagens de falhas no plantio "da sêca" foram baixas; já no plantio "das águas", as variedades de brotação lenta, como "Voran" e "Sabina", falharam muito; b "Prinslander" e "Konsuragis" resistiram bem à sêca prolongada, e "Barima" o "Linda" mostraram ser muito sensíveis; c "Linda", "Voran" e "Merkur", principalmente a primeira destas, apresentaram boa resistência a Phytophthora infestans, e "Jätte-Bintje" foi muito suscetível; "Voran", "Irene", "Prinslander" e "Barima" não ofereceram resistência a Alternaria solani; d "Merkur" e "Konsuragis" foram as mais produtivas para as duas épocas de plantio, sendo que "nas águas", "Eigenheimer", "Barima", "Concordia" e Jätte-Bintje", também produziram bem. Outros aspectos relacionados com variedades foram estudados.Twelve potato varieties imported from Holland (Prinslander, Irene, Froma, and Barima, Germany (Merkur, Sabina, Linda, and Concordia, and Sweden (Konsuragis, Eigenheimer, Voran, and Jätte-Bintje were compared in six experiments carried out at three different localities in the state of São Paulo (Campinas, Louveira, and Capão Bonito. The experiments were planted twice a year, once during the so-called dry season (March lo July, and another time during the rainy season (September to March. The following results were obtained: a plantings made in the dry season had a good stand, whereas this was

  10. Nivel de aceptabilidad para cinco variedades de uva de mesa en el mercado español Nivel de aceitabilidade para cinco variedades de uva de mesa no mercado espanhol

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    Cesar Rosso Piva

    2006-04-01

    Full Text Available Con el objetivo de evaluar el nivel de aceptabilidad con relación a distintas variedades de uva de mesa, la Unidad de Comercialización y Divulgación Agraria del Departamento de Economía y Ciencias Sociales Agrarias (E.T.S.I.Agrónomos, de la Universidad Politécnica de Madrid, realizó la presente investigación en julio de 1999. Se utilizó el análisis sensorial en Sala de Catas como herramienta para la evaluación del nivel de aceptabilidad de cinco variedades de uva de mesa. Se puso énfasis en conocer las posibles diferencias de carácter sensorial entre las variedades Flame Seedless, Cardinal, Superior Seedless, Victoria y Redgloble, variedades que coinciden en su época de cosecha en España. En los análisis hechos, las variedades Cardinal y Superior Seedless fueron las más preferidas en comparación con Flame Seedless, Victoria y Redgloble. La variedad Superior Seedless fue muy valorada por su ausencia de semillas, además de su buen sabor, lo que la torna de gran potencial para el mercado español. El sabor, seguido de la jugosidad, fueron los elementos determinantes en el proceso de aceptación de la uva.Com o objetivo de avaliar o nível de aceitabilidade de distintas variedades de uva de mesa, a Unidade de Comercialização e Divulgação Agrária do Departamento de Economia y Ciências Sociales Agrárias (E.T.S.I. Agrónomos, da Universidade Politécnica de Madri, realizou o presente estudo em julho de 1999. Empregou-se a análise sensorial para a avaliação do nível de aceitabilidade de cinco variedades de uva de mesa. Procurou-se determinar especial atenção em conhecer as possíveis diferenças de caráter sensorial entre as variedades Flame Seedless, Cardinal, Superior Seedless, Victoria e Redgloble. Nos pomares espanhóis, essas variedades atingem a maturação de colheita na mesma época. Nas análises realizadas, as variedades Cardinal e Superior Seedless foram as mais preferidas em comparação com Flame Seedless

  11. Normas de calidad para las variedades de mango "tommy Atkins" y "común" (hilacha

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    Gabriela Mahecha

    2010-05-01

    Full Text Available Se caracterizaron dos variedades Je mango (Manauifera indica L; Tommy Atkins y Común.Se realizaron las siguientes determinaciones; a físicas; forma, volumen, dureza, peso total, rendimiento en pulpa y relación longitud/diámetro y b químicos: % de acidez titulable, y de almidón, °Brix, pH, índice de madurez y análisis sensorial,Se ensayó un método cualitativoparadeterminaralmidon.se desarrollaron cartas de color tanto de la cascara como de la pulpa, del estado verde al maduro y se diseñó un dispositivo para medir en forma ágil la longitud y los diámetros de la fruta. En las dos variedades se encontraron correlaciones altamente significativas entre la longitud y los diámetros mayor y menor, la longitud y el peso total, la dureza sin cascara y el índice de madurez, el peso específico aparente y el % de almidón y entre el contenido de almidón y el índice de madurez. En base a los resultados obtenidos se establecieron estándares preliminares de calidad para selección de mango durante la recolección, comercialización y mercadeo

  12. Tolerância de variedades de cana-de-açúcar a herbicidas aplicados em pós-emergência e efeitos residuais sobre variedades de girassol

    OpenAIRE

    Souza, Joseane Rodrigues de [UNESP

    2008-01-01

    O experimento foi conduzido no Centro de Cana do Instituto Agronômico de Campinas, localizado no município de Ribeirão Preto, SP, com o objetivo de avaliar a tolerância de variedades de cana-de-açúcar a herbicidas aplicados em pós-emergência da cultura e o efeito residual no solo sobre variedades de girassol. O primeiro estudo foi desenvolvido em campo no delineamento de blocos casualizados em esquema de parcelas subdivididas com 36 tratamentos em quatro repetições. Foram utilizadas as varied...

  13. Estudio Estadístico Comparativo sobre Dos Variedades de Maíz

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    Ramírez Hernán

    1946-12-01

    Full Text Available 1°-Se determinó el porcentaje de granos en mazorcas de tipo comercial para dos variedades de maíz. Una seleccionada en Venezuela con la denominación de "Venezuela-l" de gran adaptación y buena aceptación entre nuestros agricultores, y otra variedad de maíz criollo distinguido en el comercio con el nombre de "Cuba Blanco" con los siguientes resultados en promedio: Para Venezuela-l 81.29% Para el Cuba blanco 80.90 % 2°-Estas dos variedades se compararon por los diversos caracteres de la mazorca: número de surcos, peso en gramos, largo en centímetros, diámetro en milímetros; de la tusa: diámetro en milímetros y peso en gramos, y de los granos: porcentaje, peso en gramos y profundidad en milímetros. El resultado obtenido fue muy favorable para el Venezuela-l, lo cual confirma los buenos efectos de la selección aplicada al maíz. 3°-Un estudio de correlación simple, correlación parcial y regresión parcial aplicado a varios caracteres de la mazorca en las mismas variedades mostró un alto grado de relación entre caracteres, como peso total y largo; peso total y diámetro; peso total y profundidad de los granos; número de surcos y diámetro; largo y diámetro y diámetro y profundidad de los granos. Así mismo, al hacer constantes, la influencia del porcentaje de granos y surcos, se obtuvo una alta significación para la relación entre el peso total y el largo; el caso recíproco al hacer constante la influencia del porcentaje de granos y surcos se obtuvo una alta significación entre el largo y el peso total; también resultó altamente significativa la relación entre el peso total y el porcentaje de granos cuando se tomaron el número de surcos y el largo como constantes. Se determinó el coeficiente de regresión parcial para valorar la influencia que tiene un carácter que se toma como independiente sobre otro tomado como dependiente, resultando una influencia mayor de aquellos caracteres sobre éstos en

  14. Produtividade e composição mineral de diferentes variedades de batatinha

    Directory of Open Access Journals (Sweden)

    O. J. Boock

    1950-06-01

    Full Text Available A finalidade dêste trabalho foi a de estudar o comportamento de diversas variedades de batata, não só quanto à produtividade, precocidade, resistência às moléstias e pragas etc, como, também, verificar a composição química mineral de cada uma delas, nas diversas localidades. Foram dadas as descrições dos principais caraterísticos das variedades, e estudados, física e quimicamente, os solos onde as experiências tiveram andamento. Apreciações foram feitas sôbre as produções nas várias localidades, e os teores minerais contidos na casca e na polpa foram analisados isoladamente. As conclusões tiradas vieram evidenciar que as variedades apresentaram, de modo geral, acentuadas variações em alguns dos seus caraterísticos, como resistência às moléstias, produtividade, precocidade, etc. Assim, as variedades Alpha e Voran mostraram ser as mais resistentes ao ataque da fitóftora, e Eersteling, Saskia e Doré as menos resistentes. A Doré mostrou-se sujeita ao coração ôco; a Eigenheimer e Bintje muito suscetíveis ao embonecamento; a Eigenheimer e Alpha deram maior percentagem de tubérculos com manchas na polpa ; a Saskia foi a mais afetada pela sarna comum, rizoctoniose e nematóides, e a Geelblon foi a que mais produziu tubérculos afilados, devido a vírus. Quanto à precocidade, a Libertas, Alpha e Voran foram as mais tardias ; a Eigenheimer, Bintje e Z.P.C. - 40405 meio precoces, sendo as demais precoces. Em relação à produtividade, considerando-se a média das seis experiências, a Bintje e a Eigenheimer foram as mais produtivas, seguindo-se a elas a Voran, Doré e Alpha. Verificaram-se as menores produções na variedade Libertas, que entrou em uma única experiência. Do ponto de vista estatístico, não encontramos diferenças significativas entre variedades, nas experiências executadas em São Bento do Sapucaí e em Itaiquara ; nas demais, constatamos resultados altamente significativos para tratamentos. A

  15. Bribri, nueva variedad de fríjol rojo pequeño para Costa Rica

    Directory of Open Access Journals (Sweden)

    Juan Carlos Hern\\u00E1ndez

    2001-01-01

    Full Text Available Entre 1996 y 1999 fue introducida y evaluada en Costa Rica la línea MD 23-24 que dio origen a la nueva variedad de frijol Bribri. La misma fue desarrollada por la Escuela Agrícola Panamericana-Zamorano y se originó de la cruza (RAB 310/XAN 155 X (DOR 391/POMPADOUR G. La variedad se caracteriza por presentar un grano pequeño de color rojo brillante, de hábito de crecimiento Tipo II-B, de porte erecto y ciclo vegetativo entre 76 y 80 días. Las dos principales zonas de vida donde se evaluó fueron la bh-T (bosque húmedo tropical y el bmh-P (bosque muy húmedo Premontano. En la mayoría de los lugares evaluados predominaron pequeñas explotaciones comerciales y suelos ultisoles de baja fertilidad. La variedad Bribri superó en rendimiento promedio, al testigo nacional en 17,2% y al testigo local en13,4%. Su producción fue superior en un 8,5% al promedio de rendimiento obtenido en todos los ensayos. La etapa de verificación y de validación se efectuó en nueve y once localidades respectivamente, con base en la tecnología empleada por los productores. Bribri superó en rendimiento a los testigos locales en el 67% de las parcelas en la fase de verificación (con un promedio de 15,5% más de kg/ha y en el 80% de las parcelas de validación (con un promedio de 7,5% mas de kg/ha. Mostró además tolerancia a la mustia hilachosa. (Thanatephorus cucumeris (A.B. Frank Donk. En el año 2000 se sembraron 100 ha de Bribri a nivel comercial en la Región Brunca

  16. Squamous Cell Carcinoma

    Science.gov (United States)

    ... Kids’ zone Video library Find a dermatologist Squamous cell carcinoma Overview Squamous cell carcinoma: This man's skin ... a squamous cell carcinoma on his face. Squamous cell carcinoma: Overview Squamous cell carcinoma (SCC) is a ...

  17. Usurpación de derechos de propiedad industrial y derechos de obtentores de variedades vegetales

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    Bibiana Cala Moya

    2010-12-01

    Full Text Available La propiedad intelectual, específicamente la propiedad industrial, debe ser protegida cuando los derechos por ella otorgados son usurpados de manera ilícita. Por lo anterior, el Derecho penal se erige como una herramienta de coerción que busca proteger las nuevas creaciones y los signos distintivos. En este artículo se explica de manera clara y sencilla tanto los elementos objetivos del tipo penal de usurpación de derechos de propiedad industrial y derechos de obtentor de variedades vegetales existente en la legislación colombiana, así como los aspectos procesales relacionados con el mismo. Esto se logra a partir de un estudio analítico y descriptivo del tipo penal y su interpretación sistemática en relación con la normatividad especial en el campo de la propiedad industrial y la legislación procesal.

  18. SELEÇÃO MASSAL EM VARIEDADES DE MILHO CRIOULO NO SUL DO PIAUÍ

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    Rejane Teixeira do Nascimento

    2014-06-01

    Full Text Available O objetivo deste trabalho foi realizar a seleção massal de duas variedades de milho crioulo no sul do Piauí, disponibilizando-se populações melhoradas para que possam ser utilizadas em programas de melhoramento. O experimento foi conduzido na área experimental da Universidade Federal do Piauí (UFPI/CPCE. Utilizou-se o método de seleção massal dentro de populações, com dois ciclos de seleção, período 2011/2013, utilizando-se sementes de duas variedades de milho crioulo: milho roxo peruano e milho palha roxa (procedência Espírito Santo (ES e procedência São Paulo (SP. As características avaliadas foram: altura da planta, altura da espiga, massa da espiga e produção. As populações foram submetidas a intensidades de seleção de 10%, nos dois ciclos de seleção. O índice econômico de seleção foi calculado baseando-se no método de Mulamba & Mock. A seleção massal para as variedades de milho crioulo foi eficiente pelas altas variabilidades encontradas para os caracteres estudados, sendo que a variedade Milho Palha Roxa SP, por apresentar maior produtividade e ser responsiva a seleção massal, pode ser indicada para agricultores familiares com baixo emprego de tecnologia da região. Palavras-chave: zea mays, variabilidade genética, melhoramento, amplitude.  MASS SELECTION IN VARIETIES OF LANDRACE MAIZE IN SOUTHERN PIAUÍ ABSTRACT The objective of this work was to perform the mass selection of two varieties of landrace maize in southern Piauí, with available improved populations to can be used in breeding programs. Experiment was conducted in the experimental area of Federal University of Piauí (UFPI/CPCE. We used the method of mass selection within populations, with two cycles of selection, period 2011/2013, using  two maize landrace varieties seeds: Peruvian purple maize and purple straw maize (from Espírito Santo (ES and from São Paulo (SP. The evaluated characteristics were: plant height, ear height, mass of

  19. QUALIDADE PROTÉICA DE DIVERSOS ALIMENTOS, INCLUINDO DIFERENTES VARIEDADES DE SOJA*

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    FABRíCIA QUEIROZ MENDES

    2009-09-01

    Full Text Available

    O objetivo desse trabalho foi avaliar a digestibilidade protéica, o PER e NPR das seguintes fontes proteicas: caseína, albumina, arroz, aveia, carne de frango, peixe e suína, leite em pó, proteína de soro de leite, quinoa e cinco variedades de soja. A avaliação da qualidade protéica foi conduzida por ensaios biológicos, durante 14 dias, utilizando-se ratos recém desmamados. As dietas continham teores de 9,5% de proteína e 7% para a de arroz. Foi determinada a atividade de inibidor de tripsina nas amostras de soja. As dietas de caseína, albumina, arroz, proteína de soro de leite e as carnes suína, peixe e frango apresentaram maiores valores de digestibilidade, não diferindo entre si, com valores entre 92,12% a 95,54%. As que continham soja foram as que apresentaram menor valor de digestibilidade (73,23% a 78,04%. Para valores de PER e NPR, leite em pó, caseína, albumina, proteína de soro e as carnes apresentaram os maiores valores. Os valores encontrados para a inibição de tripsina variaram de 100,71 a 157,72 mg de tripsina inibida/g de proteína. A menor digestibilidade das variedades de soja prova que a presença de fatores antinutricionais reduz a biodisponibilidade das proteínas.

  20. Variabilidad y caracterización de diez variedades de papa en tres localidades del Estado de México

    Directory of Open Access Journals (Sweden)

    D. J. Pérez-López

    2007-01-01

    Full Text Available Se evaluaron 10 variedades de papa (Solanum tuberosum L. en tres localidades del Estado de México en el verano del 2004 y 2005. Se estimaron los componentes de varianza y la heredabilidad de siete caracteres cuantitativos. Las variedades también se describieron a partir de 21 caracteres cualitativos. El diseño experimental fue bloques completos al azar con cuatro repeticiones por ambiente. El análisis estadístico de la serie de experimentos se basó en un modelo de efectos aleatorios para los siete caracteres cuantitativos. Los caracteres cualitativos se describieron de acuerdo con la Guía Técnica para la Descripción Varietal de la Papa, del Servicio Nacional de Inspección y Certificación de Semillas (SNICS. Los resultados mostraron significancia estadística (P¿0.01 para localidades, genotipos e interacción genotipo x ambiente para cada caracter evaluado. La heredabilidad en sentido amplio fue superior al 61.6 % en Raíces, Metepec y San Francisco Oxtotilpan. El mayor peso de tubérculo se registró en la variedad identificada como 750660 (27.8 t·ha-1, que superó estadísticamente a la variedad Alpha (testigo. La altura de la planta y el número de tallos por planta se correlacionaron negativamente (P¿0.01 con el peso de tubérculo (PTHA, pero el resto de las variables evaluadas contribuyeron a un aumento significativo del PTHA (P¿0.01. Con relación a la estructura del follaje, la variedad identificada como 777091 fue la mejor en Raíces y Metepec, pero 776943 sobresalió en San Francisco.

  1. INCIDENCIA DE POBLACIONES DE SIEMBRA Y LONGITUDES DE GUÍA EN RENDIMIENTO DE VARIEDADES DE CAMOTE

    Directory of Open Access Journals (Sweden)

    Gloria Cobeña Ruíz

    2017-06-01

    Full Text Available El trabajo tuvo la finalidad de evaluar la producción de follaje, número y rendimiento de raíces comerciales en dos variedades de camote (Ipomoea batatas L., Toquecita introducida del CIP-Perú y clasificada como promisoria en la Estación Experimental Portoviejo del INIAP y Guayaco Morado, variedad local, mayormente comercializada por los agricultores, frente a dos longitud de guías (0,10; 0,30 m y cuatro arreglos poblacionales (25 000, 33 333, 50 000, 66 666 plantas.ha-1. El experimento, se condujo en dos localidades de la Costa ecuatoriana (sitio San Eloy, cantón Rocafuerte, provincia de Manabí y El Salado, cantón Santa Elena, provincia Santa Elena, bajo un diseño de bloques completamente al azar en arreglo factorial 2x2x4, con 16 tratamientos y tres repeticiones por localidad. Los resultados permitieron identificar en el sitio El Salado, a la variedad Toquecita como superior en rendimiento (42,9 t.ha-1 con longitud de guía 0,30 m y un arreglo poblacional de 66 666 plantas ha-1 (0,30 x1,00 m; 2 guías/sitio. Mientras que en San Eloy, también se destacó la variedad Toquecita con 47,1 t.ha-1, con la misma densidad de plantas, pero con una longitud de guía de 0,10 m. Se concluye que en los dos sitios la variedad Toquecita presentó el mejor comportamiento de rendimiento de follaje y raíces comerciales, posiblemente influenciado por la alta densidad poblacional, sin que la longitud de guía afecte a los mismos.

  2. Contacto y constitución de variedades del español en el Putumayo, Colombia

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    Arboleda Toro Rubén

    2003-06-01

    Full Text Available

    En distintos lugares de Hispanoamérica se viven procesos lingüísticos análogos al que se dio con la llegada de los españoles a territorio americano; es,  el contacto de diferentes variedades de español, que  desemboca en la constitución del español de América. Uno de esos procesos es el que se viven en el Bajo Putumayo (Amazonia occidental colombiana. Esta región del departamento de Putumayo ha sido objeto de una colonización intensa, sobre todo a partir de 1950 aproximadamente, motivada por distintas bonanzas regionales como la coca, el petróleo e incluso la madera  (antes fueron la quina y el caucho y por los desplazamientos originados por el conflicto armado y otros hechos de violencia en Colombia. La población colona predominante, proveniente del departamento de Nariño y del Alto Putumayo, es hablante de una variedad conocida como español andino;  pero al lado de esta población han llegado hablantes de español tolimense, antioqueño, llanero y costeño (pacífico y atlántico, entre otros. El contacto de estas variedades parece estar originando una nueva variedad, según lo insinúan unos primeros datos recolectados. Atendiendo a un modelo de análisis propuesto por Germán de Granda, consideramos que el proceso de constitución  de la nueva variedad se encuentra en una primera etapa, la de koimeización, que comprende procesos nivelación y simplificación.

  3. Estudo e comportamento de variedades de alho-porro Studies on the behavior ok leek varieties

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    Nélson Teixeira de Mendonça

    1965-01-01

    Full Text Available São relatados os dados de ensaio de competição entre 16 cultivares de alho-porro (Allium porrum L. procedentes da Europa e dos Estados Unidos da América do Norte, instalado em Campinas, em solo de formação glacial. O objetivo do experimento foi verificar o comportamento das variedades para o consumo in natura e para a indústria. Destacaram-se pela produção para consumo in natura as variedades I-3346 (Monstrueux D'Elbeuf e I-3353 (Long de Nice, respectivamente com 3,8 e 3,3 kg/m², seguindo-se I-3351 (Monstrueux de Carentan, I-3460 (Doubouchet, I-3458 (Dubouchet de outra procedência e I-3418 (Large American Flag com 2,9 kg/m². Para indústrias, destacaram-se pelos maiores rendimentos as variedades I-3350 (Gros Long D'Été, com 12,9%, I-3353 (Long de Nice, com 12,2%, seguindo-se I-3351 (Monstrueux de Carentan, I-3458 (Dubouchet, I-3355 (Longo de Talos Grossos e I-3349 (Bleu de Solaise. Não foi encontrada relação entre a produtividade (pêso do material in natura e o rendimento em pó.Varieties of leek (Allium porrum L., have already been sudied by the Seção de Olericultura of the Instituto Agronômico, using seeds imported from countries other than Brazil in view of leek not producing under our climatic conditions. Up to 1961, leek was cultivated in the State of São Paulo, only for fresh market because of the small demand. During the last years, its culture is growing more and more on account of the compensating prices reached on the market, the demand being high from important industries which devote themselves to the preparation of dry soups and flavours. In this paper data are given which were obtained from an experiment of competition with 16 varieties proceeding from Europe and the United States. It was installed in 1963 at the Central Experiment Station, in Campinas, on an area where the soil is of Glacial formation. The purpose of this trial was to determine which varieties are best for fresh market or for the industry

  4. Densidades de siembra de dos variedades comerciales de crisantemo, Chrysantemum morifolium Ramat en Piendamo (Cauca

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    Posada D. Adolfo

    1986-09-01

    Full Text Available The behavior and agricultural characteristics of two kinds of Chrysanthemum (White Marble and Yellow Polaris were evaluated in terms of yield and quality of the product. Two different kinds of planting systems were applied (single stem and pinched stem. The experimental design in randomized whole blocks for each variety and system including four density treatments (80, 90, 110 and 115 sterns per 1.05 m2 was repeated six times. The experimental unit was of 2.10 m2; 1.26 m2 were harvested. A strong discrepancy between the quantity and quality of the product was observed. The highest yields were obtained with densities of 110 and 115 stems per 1.05 m2. However, the experimental units dis not always met both requirements of a diameter greater than seven cm and three or more marketable flowers per stem. If maximizing production of acceptable bunches is taken as a decision variable, a density of 90 sterns per 1.05 m2 with a 3/3/2/2/2/3/3 arrangement with pinched stern for Yellow Polar is seems a better alternative. As for White Marble, it would be better to have 80 stems per 1.05 m2 with a 3/2/2/2/2/2/3 arrangement in the single stem, but the probability of acceptance is only 0.666. In addition, White Marble showed more susceptibility to dwarfism.Se evaluó el comportamiento y características agronómicas asociadas con el rendimiento y la calidad del producto en las variedades White Marble y Yellow Polaris, en los sistemas de tallo único y tallo despuntado. El diseño experimental de bloques completos al azar para cada variedad y sistema incluía cuatro tratamientos de densidad (80, 90, 110 Y 115 tallos por 1.05 m2, con seis repeticiones. La unidad experimental fue de 2.10 m2, cosechando 1. 26m2(1.05 x 1.20. Se observó marcado antagonismo entre la cantidad y la calidad del producto comercial. Los mayores rendimientos se obtuvieron con densidades de 110 y 115 tallos por 1.05 m2, pero no siempre la producción cumplía con los requisitos de di

  5. A identificação das variedades regionais do português brasileiro através da informação entoacional

    OpenAIRE

    Peres, Daniel Oliveira

    2017-01-01

    Resumo Este estudo tem como objetivo verificar se falantes do português brasileiro são capazes de reconhecer suas próprias variedades regionais a partir das informações entoacionais. Além disso, também pretende procurar pistas nas variações de F0 que possam justificar o desempenho dos participantes. Os dois experimentos realizados neste trabalho foram feitos com base em três variedades do Português Brasileiro: a variedade de Pelotas (RS), São Paulo (bairro da Mooca) e Senador Pompeu (CE). O e...

  6. Respuesta de 41 variedades prometedoras de caña de azúcar a la enfermedad de la escaldadura de la hoja (Xanthomonas albilineans).

    OpenAIRE

    López Vázquez, José de Jesús

    2013-01-01

    La escaldadura de la hoja (Xanthomonas albilineans), es una de las enfermedades bacterianas de mayor importancia en el cultivo de caña de azúcar. Afecta la calidad del jugo y en variedades susceptibles ocasiona pérdidas estimadas entre el 90 y 100%. Con el objetivo fue caracterizar molecularmente el agente causal, evaluar el método apropiado de inoculación y evaluar la respuesta de 41 variedades de caña de azúcar a la escaldadura de la hoja. Las variedades fueron inoculadas en campo por tres ...

  7. RESISTENCIA A SEQUÍA DE LINEAS Y VARIEDADES DE FRIJOL NEGRO TROPICAL

    Directory of Open Access Journals (Sweden)

    Ernesto Lopez Salinas

    2011-06-01

    Full Text Available Los objetivos de esta investigación fueron: clasificar genotipos de frijol negro por su tolerancia a sequía e identificar los de mayor eficiencia en el rendimiento en condiciones de riego y sequía. Para ello, en invierno-primavera 2008 se condujeron dos experimentos en Medellín de Bravo, Veracruz; uno con riego todo el ciclo y el otro sin riego, a partir del inicio de floración. Se evaluaron nueve líneas, seis variedades y Criollo Arbolito (testigo local en diseño bloques completos al azar con tres repeticiones. Se cuantificó días a madurez fisiológica, producción de materia seca sin grano, vainas por planta, peso de 100 semillas y rendimiento de grano. Se hicieron análisis de varianza por condición de humedad y uno combinado. Como estimadores de eficiencia se utilizaron el índice de susceptibilidad a sequía (ISS y el índice de eficiencia relativa del rendimiento (IER. Con riego, Negro INIFAP, 82L-17-80, Negro Tacaná y Negro Veracruz, fueron los genotipos más productivos con más de 1,0 t ha-1. Con sequía sobresalieron los dos últimos genotipos, más la línea DOR 448, con rendimientos superiores a 400 kg ha-1. El rendimiento bajo sequía en promedio representó el 37,7% con respecto al de riego. Con ISS de 0,71, 0,85 y 0,87, las líneas DOR-448, NGO 17-99 e Icta Ju-97-1, respectivamente, fueron clasificadas como resistentes a sequía. Las variedades Negro Tacaná y Negro Veracruz con valores de IER de 1,67 y 1,47, mostraron la mayor eficiencia en el rendimiento en ambas condiciones de humedad.

  8. Actitudes lingüísticas en Uruguay. Tensiones entre la variedad y la identidad

    Directory of Open Access Journals (Sweden)

    Elizabeth García de los Santos

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de los hablantes nativos de español de la ciudad de Montevideo hacia al español de Uruguay y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigaciones (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes previamente estratificada con las variables de edad, sexo y nivel socioeconómico. Los resultados presentan el grado de identificación de los hablantes frente a su variedad del español (creencias, lealtad hacia la norma propia y las actitudes de los hablantes respecto a las variedades entendidas como de mayor o menor prestigio; se encuentran ciertas regularidades en las causas que determinan estas actitudes. El estudio analizar el grado de tolerancia a las diferencias lingüísticas de acuerdo a distintos géneros discursivos (noticias de radio y televisión, información telefónica, publicidades y los resultados muestran que el contexto y el medio de comunicación son importantes para la manera en la que el hablante reacciona al uso del lenguaje. Abstract This article analyzes the linguistic attitudes of native Spanish-speakers from Montevideo towards Spanish spoken in Uruguay and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. The results describe the degree of identification of the speakers with their own variety of Spanish (beliefs, loyalty to the norm and their attitudes toward linguistic varieties of high or low prestige, and the findings

  9. Ejercicios individuales de gimnasia rítmica: variedad y diversidad

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    Catarina Leandro

    2017-06-01

    Full Text Available El objetivo de este estudio es hacer un análisis cuantitativo y cualitativo de los elementos técnicos utilizados en ejercicios individuales, en el Campeonato del Mundo de Gimnasia Rítmica (GR en Kiev, 2013, e identificar las características estructurales de la composición, que permiten percibir la variedad y diversidad en los ejercicios de GR en cada uno de los aparatos. Se analizaron 288 fichas de la competición, correspondientes a los ejercicios de 72 gimnastas en cada aparato (aro, pelota, mazas y cinta. Los datos fueron analizados mediante estadística descriptiva y pruebas no paramétricas (Kruskal-Wallis, Mann-Whitney y prueba de Friedman. Los resultados muestran características estructurales en la composición de los ejercicios similares en las diferentes modalidades respecto a los aspectos de la técnica corporal que determinan el mayor porcentaje en la composición, Los ejercicios de los diferentes aparatos se distinguen en los grupos más relacionados con la parte artística (maestría, pasos rítmicos y elementos dinámicos de rotación con lanzamiento, EDR, principalmente debido a las características específicas de cada aparato. Este estudio proporciona información actualizada sobre el contenido técnico de los ejercicios individuales de GR de élite, para ser considerado respecto a: (1 la posibilidad de modificar el presente código de puntuación, sobre todo en la definición de las exigencias de composición que favorezcan la variedad y diversidad y fomentar el valor artístico y la unidad técnica del aparato; (2 el proceso de formación de valor y el perfil de desempeño de GR de élite.

  10. Efecto del beneficiado de mezclas de variedades de arroz sobre variables de rendimiento molinero

    Directory of Open Access Journals (Sweden)

    Manuel Zeled\\u00F3n-Grau

    2007-01-01

    Full Text Available Efecto del beneficiado de mezclas de variedades de arroz sobre variables de rendimiento molinero. Con el fin de determinar si las variables de rendimiento molinero del arroz (rendimiento de molino, rendimiento de arroz co mer cial e ín di ce de pi la da se afec tan cuan do una va rie dad se be ne fi cia en mez cla con otras, en el Cen tro de In vestigacio nes en Gra nos y Se mi llas (CIGRAS se eva lua ron cua tro mez clas de las tres va rie da des más uti li za das en Cos ta Ri ca en la co se cha 1999-2000 (CR-1113, CR-5272 y Se te sa-9. Otras variables analizadas fueron los por centajes de: grano quebrado, grano quebrado grueso, puntilla, semolina (salvado de arroz, se mo li na pu ra y cas carilla en la semolina. Para cada variable se calculó un índice (Im que ex presa qué tanto el va lor ob te ni do se des vió del va lor esperado para cada una de las mez clas (es pe ra do = pro me dio de los re sultados individua les para cada variedad cuando se la pro cesó sin mezclar. No se encontraron diferencias significativas entre los índices de los tra ta mien tos eva lua dos. Sin em bar go, se ob ser vó un efecto detrimental en las variables de rendimiento molinero de las mez clas en que par ti ci pó CR 5272. Con tra rio a es to, la mezcla CR-1113-Setesa-9 mostró un efecto beneficioso. Los efectos detrimentales observados con el beneficiado de las mez clas fue ron atri bui dos a una ma yor pro duc ción que la esperada de puntilla y de pedazos muy pequeños de arroz en la se mo li na. Por su par te, en la mez cla en la que se re gis tró un efecto beneficioso hubo una menor producción que la esperada de se molina pura y de quebrado grueso. La pérdida económica que causaría la mezcla más perjudicial fue estimada en $ 1 por to ne la da mé tri ca.

  11. Cruzamento dialélico parcial entre variedades locais do Paraná e variedades sintéticas de milho Partial dialell cross between landraces from Paraná and synthetic varieties of maize

    Directory of Open Access Journals (Sweden)

    Vanessa Kostetzer

    2009-09-01

    Full Text Available Os objetivos deste trabalho foram determinar as capacidades geral e específica de combinação entre variedades locais e sintéticas de milho e identificar cruzamentos que reúnam características de interesse agronômico, com vistas à síntese de variedades. O dialelo parcial foi realizado com 11 variedades sintéticas cruzadas com cinco variedades locais do Paraná. As combinações híbridas resultantes foram avaliadas juntamente com as cinco variedades locais genitoras e com cinco híbridos comerciais, em blocos completos ao acaso com quatro repetições, em São João do Triunfo e Londrina, PR. Houve interação genótipo x local para a maioria dos caracteres avaliados, com predominância da interação da capacidade geral de combinação x local. As melhores estimativas de capacidade geral de combinação do grupo dos sintéticos foram observadas para ST09 e ST04 e, no grupo das variedades, para MC45 e IAPAR 50, considerando-se o conjunto das características e de locais. As melhores combinações híbridas (MC34 x ST04, IAPAR 50 x ST07, MC47 x ST09, MC45 x ST02, MC51 x ST04 e MC45 x ST01 apresentaram estimativas positivas de capacidade específica de combinação quanto à produtividade, em ambos os locais. Existem combinações híbridas com potencial para síntese de novas variedades com padrões de produtividade, altura de planta, posição relativa da espiga e percentagem de espigas danificadas e de plantas acamadas e quebradas melhores que os observados em variedades locais per se e mais semelhantes aos dos híbridos comerciais.The objectives of this work were to determine the general and specific combining ability between landraces and synthetic varieties of maize and to identify the crosses that combine important agronomic traits, to develop new maize varieties. A partial diallel was done with 11 synthetic varieties crossed with five landraces. The crosses were evaluated along with the five parental landraces and five commercial

  12. Prostate carcinomas

    International Nuclear Information System (INIS)

    Toledano, A.; Chauveinc, L.; Flam, T.; Thiounn, N.; Solignac, S.; Timbert, M.; Rosenwald, J.C.; Cosset, J.M.; Ammor, A.; Bonnetain, F.; Brenier, J.P.; Maingon, P.; Peignaux, K.; Truc, G.; Bosset, M.; Crevoisier, R. de; Tucker, S.; Dong, L.; Cheung, R.; Kuban, D.; Azria, D.; Llacer Moscardo, C.; Ailleres, N.; Allaw, A.; Serre, A.; Fenoglietto, P.; Hay, M.H.; Thezenas, S.; Dubois, J.B.; Pommier, P.; Perol, D.; Lagrange, J.L.; Richaud, P.; Brune, D.; Le Prise, E.; Azria, D.; Beckendorf, V.; Chabaud, S.; Carrie, C.; Bosset, M.; Bosset, J.F.; Maingon, P.; Ammor, A.; Crehangen, G.; Truc, G.; Peignaux, K.; Bonnetain, F.; Keros, L.; Bernier, V.; Aletti, P.; Wolf, D.; Marchesia, V.; Noel, A.; Artignan, X.; Fourneret, P.; Bacconier, M.; Shestaeva, O.; Pasquier, D.; Descotes, J.L.; Balosso, J.; Bolla, M.; Burette, R.; Corbusier, A.; Germeau, F.; Crevoisier, R. de; Dong, L.; Bonnen, M.; Cheung, R.; Tucker, S.; Kuban, D.; Crevoisier, R. de; Melancon, A.; Kuban, D.; Cheung, R.; Dong, L.; Peignaux, K.; Brenier, J.P.; Truc, G.; Bosset, M.; Ammor, A.; Barillot, I.; Maingon, P.; Molines, J.C.; Berland, E.; Cornulier, J. de; Coulet-Parpillon, A.; Cohard, C.; Picone, M.; Fourneret, P.; Artignan, X.; Daanen, V.; Gastaldo, J.; Bolla, M.; Collomb, D.; Dusserre, A.; Descotes, J.L.; Troccaz, J.; Giraud, J.Y.; Quero, L.; Hennequin, C.; Ravery, V.; Desgrandschamps, F.; Maylin, C.; Boccon-Gibod, L.; Salem, N.; Bladou, F.; Gravis, G.; Tallet, A.; Simonian, M.; Serment, G.; Salem, N.; Bladou, F.; Gravis, G.; Simonian, M.; Rosello, R.; Serment, G.

    2005-01-01

    Some short communications on the prostate carcinoma are given here. The impact of pelvic irradiation, conformation with intensity modulation, association of radiotherapy and chemotherapy reduction of side effects, imaging, doses escalation are such subjects studied and reported. (N.C.)

  13. Anaplastic carcinoma

    International Nuclear Information System (INIS)

    Parikh, D.M.; Agarwal, S.; Rao, R.S.

    1999-01-01

    Thyroid carcinoma (TC) is a slow growing tumor with an indolent course and has an excellent prognosis. However, a sharp contrast exists in the biological behavior of TC, which in its well-differentiated form is associated with long-term survival, but in its undifferentiated form is one of the most lethal neoplasms known. The anaplastic carcinoma (ANC) form has a fulminanat course with poor prognosis and almost invariably, a fatal outcome

  14. Petismo e chavismo: variedades de capitalismo e de regulação trabalhista no Brasil e na Venezuela

    Directory of Open Access Journals (Sweden)

    Wallace dos Santos de Moraes

    2014-06-01

    Full Text Available O objetivo deste artigo é discutir as variedades de capitalismo na América Latina e verificar se a chegada de governos de base popular alterou o curso das políticas trabalhistas implementadas após os anos 1990. Mais precisamente trata-se da discussão sobre a regulação laboral sob os governos petistas (2003-2013 e chavista (1999-2013 respectivamente no Brasil e na Venezuela. A pesquisa tem como propósito analisar como esses governos trataram a herança institucional deixada pelos antecessores neoliberais. Utilizamos a teoria de variedades de capitalismo e o conceito de path dependence para o entendimento da questão. Percebemos que a força dos movimentos sociais nas ruas foi determinante para as diferentes posturas assumidas tanto pelo petismo, como pelo chavismo.

  15. As interrogativas de conteúdo nas variedades do português falado

    Directory of Open Access Journals (Sweden)

    Erotilde Goreti PEZATTI

    2013-10-01

    Full Text Available Este estudo trata dos Atos Interrogativos de conteúdo, comumente denominados interrogativas-Q. Adotando a perspectiva funcional da linguagem e os pressupostos teórico-metodológicos da Gramática Discursivo-Funcional, procura-se explicar as diferentes formas assumidas pelas interrogativas-Q com base no alinhamento entre a codificação dessa estrutura nos níveis Morfossintático e Fonológico e as formulações ocorridas nos níveis Interpessoal e Representacional, centrando-se na questão da ordenação de elementos-Q. Como universo de pesquisa, tomam-se ocorrências reais de uso extraídas do corpus oral organizado pelo Centro de Linguística da Universidade de Lisboa, em parceria com a Universidade de Toulouse-le-Mirail e a Universidade de Provença-Aix-Marselha, que dispõe de amostragens das variedades do português falado em Portugal, no Brasil, nos países africanos de língua oficial portuguesa, no Timor Leste e em Macau.

  16. Basal Cell Carcinoma

    Science.gov (United States)

    ... Kids’ zone Video library Find a dermatologist Basal cell carcinoma Overview Basal cell carcinoma: This skin cancer ... that has received years of sun exposure. Basal cell carcinoma: Overview Basal cell carcinoma (BCC) is the ...

  17. Merkel Cell Carcinoma

    Science.gov (United States)

    ... Kids’ zone Video library Find a dermatologist Merkel cell carcinoma Overview Merkel cell carcinoma: This rare skin ... hard patch (1) or firm bump (2). Merkel cell carcinoma: Overview What is Merkel cell carcinoma? Merkel ...

  18. Evaluación de la capacidad de reproducción vegetativa de variedades de morera (Morus alba L.

    Directory of Open Access Journals (Sweden)

    G Martín

    Full Text Available Con el objetivo de evaluar el efecto de la variedad y de la parte de la rama en la brotación foliar y radicular de los propágulos, se estudiaron cinco variedades de morera (tigreada, yu-12, yu-62, murcia y universidad. Las ramas se dividieron en tres partes (basal, media y apical, lo que originó un total de 15 tratamientos. Se evaluó la cantidad y el porcentaje de propágulos brotados y arraigados, el número de ramas, el número de hojas y el peso de las raíces. Yu-12 y tigreada tuvieron la mayor brotación (100 y 98 %, respectivamente. Sin embargo, tigreada se destacó en el arraigamiento (70 % del total de esquejes plantados y el peso de las raíces (2,67 g, en lo que difirió significativamente (p < 0,05 del resto de las variedades. Además, al utilizar la parte basal y la media se obtuvo el mayor porcentaje de brotación (93 y 90 %, respectivamente. La interacción de la variedad y la parte de la rama fue significativa; los mejores resultados se obtuvieron en la tigreada parte basal, en cuanto al número de ramas y de hojas. Tigreada mostró el mejor comportamiento morfoagronómico durante el periodo experimental; mientras que yu-12, yu-62, universidad y murcia no respondieron eficientemente a la reproducción a partir de propágulos. La parte basal y la media fueron determinantes en la brotación foliar y radicular y en el peso de las raíces. Se recomienda repetir estos experimentos en vivero, en diferentes meses del año, y utilizar productos que estimulen el enraizamiento de los propágulos.

  19. CINÉTICA DE DEGRADABILIDAD in vitro DE CUATRO VARIEDADES DE Panicum maximum COSECHADAS A CUATRO EDADES

    Directory of Open Access Journals (Sweden)

    Juan Humberto Avellaneda Cevallos

    2015-12-01

    Full Text Available Se evaluó la degradabilidad in vitro de la materia seca (MS de las hojas, tallos y planta completa de cuatro variedades de pasto Guinea (Panicum maximum: Común, Tanzania, Enano y Tobiata en cuatro edades de cosecha (21, 42, 63 y 84 d. Se evaluó la composición química de las variedades. Para la digestibilidad in vitro, se empleó la primera fase de la técnica de Tilley y Terry, para lo cual se extrajo líquido ruminal de dos bovinos Brown Swiss canulados a rumen. Se evaluaron seis periodos de incubación (3, 6, 12, 24, 48 y 72 h. Para la cinética de degradación in vitro, se aplicó un diseño de bloques completos al azar (DBCA, utilizando a la corrida (2 como criterio de bloqueo y repetición; se usó una incubadora DaisyII 200 y una bolsita de degradabilidad por corrida. Se observó que la mejor degradabilidad in vitro se presenta en los primeros estadios fenológicos, y que las hojas demuestran mayores características nutricionales, seguida de la planta completa y tallos. Se demostró que las diferencias en degradabilidad no están fuertemente asociadas con la variedad de Panicum maximum, sino más bien con la edad de cosecha. Por lo que se concluye, que la degradabilidad in vitro de las variedades de pasto Guinea, difieren en función del estado de madurez de la planta.

  20. Comportamiento de variedades de Chile dulce (capsicum annum en la región occidental de el Salvador

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    Lesser Linares

    2004-01-01

    Full Text Available Capsicun annum en la región occidental de El Salvador. Con el objetivo de seleccionar material vegetativo adaptable a las diferentes condiciones agroecológicas de El Salvador, se implementó una investigación de seis variedades de chile dulce. Los ensayos se realizaron en Candelaria de la Frontera, Atiquizaya y Chalchuapa en el año 2002. El diseño experimental fue de bloques al azar, con cuatro repeticiones y seis tratamientos, conformados por los variedades Nathalie, Comandante, Lido, Tikal, Quetzal y una variedad Criolla. Hubo diferencias significativas al 1 % de probabilidad para las variables de altura de planta, largo, peso, diámetro, numero de frutos y rendimiento, en el combinado de las tres localidades. El material Nathalie, sobresalió en las variables altura de planta (0,49 m, número de frutos (259.500 frutos/ha, y rendimiento (25,11 t/ha, y como consecuencia reportó el mejor ingreso ($ 19.332,80 y la mejor relación beneficio costo (3,31. La duración de anaquel varió entre seis y nueve días con respecto a los diferentes materiales de chile dulce. Los resultados obtenidos podrían crear la base para validar el cultivar Nathalie en las zonas de influencia.

  1. Tumores hepáticos incomuns: ensaio iconográfico - Parte 1

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    Bruno Cheregati Pedrassa

    2014-10-01

    Full Text Available A maioria dos tumores hepáticos primários malignos é representada pelo carcinoma hepatocelular e pelo colangiocarcinoma, entretanto, uma variedade de outras lesões hepáticas incomuns pode ser encontrada. Lesões comuns como o hemangioma, a hiperplasia nodular focal e as metástases são bem conhecidas e já foram extensamente documentadas na literatura. O diagnóstico das lesões hepáticas típicas pode ser feito com alguma segurança utilizando-se os diversos métodos de imagem; por outro lado, as lesões incomuns são geralmente um desafio diagnóstico para o radiologista. Nesta primeira parte do estudo abordaremos cinco tumores hepáticos incomuns - o angiossarcoma, o angiomiolipoma, o cistoadenoma/carcinoma biliar, o hemangioendotelioma epitelioide e o carcinoma hepatocelular fibrolamelar -, suas principais características e achados de imagem, com foco na tomografia computadorizada e na ressonância magnética.

  2. Carcinoma basocelular de los párpados Basocelular eyelid carcinoma

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    Clara G. Gómez Cabrera

    2001-12-01

    Full Text Available Se realizó un análisis de tipo retrospectivo de 39 pacientes operados, con diagnóstico histológico de carcinoma basocelular de los párpados en el período comprendido entre febrero de 1995 y diciembre de 1999. Se excluyeron los pacientes operados sin clasificación TNM. Este tumor se localizó en el párpado inferior de 22 pacientes (56,4 %. La variedad noduloulcerativa estuvo presente en 27 casos (69,2 %. 34 pacientes se encontraban en los estadios T1 y T2, 4 en el estadio T3 y solo 1 en T4. El grupo de mayor incidencia fue el de pacientes entre 50 y 70 años de edad. No hubo diferencias en cuanto al sexo. El párpado inferior constituyó la localización anatómica prevaleciente. La variedad clínica noduloulcerativa predominó, así como los estadios T1 y T2.A retrospective analysis of 39 patients that were operated on with histological diagnosis of basocelular eyelid carcinoma from February, 1995, to December, 1999, was made. Those patients who underwent surgery without TNM classification were excluded. This tumor was localized in the lower eyelid of 22 patients (56.4 %. The nodular ulcerative variety was present in 27 cases (69.2 %. 34 patients were in stages T1 and T2, 4 in T3 and only 1 in T4. The group of highest incidence was that of the patients aged 50-70. There were no differences as regards sex. The lower eyelid was the prevailing anatomic localization. The clinical nodular ulcerative variety predominated, as well as stages T1 and T2.

  3. Autopoiesis, bucles, emergencia, variedades topológicas y una conjetura sobre la consciencia humana

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    Sarmiento Campos, José A.

    2009-08-01

    Full Text Available This reflection aims to be a plausible approach to the concept of consciousness and it proposes a theory to explain its emergency. This theoretical approach integrates some of the contributions that different authors have made to science. Some of these contributions are examples of complexity in themselves (such as the concept of system, autopoiesis, emergency, cybernetic; some others are in the scope of mathematics (the concept of n-dimensional topological manifold and even some of them are related to biology (neural networks, cortical layers or columnar organization of the neocortex. All of them can be integrated in a theory, which we consider epistemologically solid and could provide an answer to questions such as the emergency of human and social consciousness.La presente reflexión pretende ser un acercamiento plausible al concepto de consciencia y propone una explicación a su surgimiento. Varias de las aportaciones que diversos autores han hecho a la ciencia y que conforman el paradigma de la complejidad, como son los conceptos de sistema, autopoiesis, emergencia, cibernética de primer y segundo orden o estado crítico; junto con otros de naturaleza matemática como las variedades topológicas n-dimensionales y aun otros procedentes de la biología como redes neuronales, capas corticales o distribución columnar de la neocorteza, se pueden integrar en un constructo, que consideramos epistemológicamente sólido, que podría dar una respuesta a cuestiones como la emergencia de la consciencia humana y también, probablemente, social.

  4. Carcinoma multiplex

    International Nuclear Information System (INIS)

    Shah, S. A.; Riaz, U.; Zahoor, I.; Jalil, A.; Zubair, M.

    2013-01-01

    Multiple primaries in a single patient are uncommon, though not very rare. The existence of such cancers in two un-related, non-paired organs is even more un-common. Here, we present a case of 55 years old male who presented to us with a mucoepidermoid carcinoma of the parotid gland and was operated. Later on, he presented with a large cystic swelling in the pelvis which turned out to be pseudomyxoma peritonei. A review of slides and immunohistochemistry indicated it to be adenocarcinoma colon. He presented again with recurrent mucoepidermoid carcinoma of the parotid which was operated successfully with the use of myocutaneous flap for wound closure. He is currently undergoing chemotherapy. In order to establish a separate mono-clonal etiology of both tumours, immunohistochemistry was performed. To the best of our knowledge, carcinoma multiplex in the colon and the parotid has never been reported before. (author)

  5. Follicular carcinoma

    International Nuclear Information System (INIS)

    Shah, D.H.; Samuel, A.M.

    1999-01-01

    Follicular thyroid carcinoma (FTC) is considered as a disease of the elderly with a higher incidence in females as compared to papillary thyroid carcinoma (PTC). Some studies have reported its occurrence at an early age, which may be attributed to early diagnosis because of the availability of advanced techniques. The prognosis of the disease is considered poor as compared to that of PTC. The conclusions drawn in this review are based on 663 cases in whom adequate data was available for meaningful analysis followed for a mean period of 9.2 years, median, 7.8 years; range, 1-32 years

  6. GALLBLADDER CARCINOMA

    OpenAIRE

    Blaž Trotovšek; Valentin Sojar; Dragan Stanisavljevič; Aleš Tomažič

    2003-01-01

    Background. Carcinoma of the gallbladder is a tumour with a dismal prognosis and 5-years overall survival rate less than 5%. Among the tumours of the gastrointestinal tract it is fifth in the row and its incidence is approximately 1.2/105. Tumour occurs more often (2–6 times) in women and in people over 50 years old (90%). According to the Slovenian Registry of Cancer for year 1998 the incidence of gallbladder carcinoma was 2.7/105 and it occurred 4 times more often among women. The most impo...

  7. Valor nutricional de frações da parte aérea de quatro variedades de mandioca Valor nutricional de frações da parte aérea de quatro variedades de mandioca

    Directory of Open Access Journals (Sweden)

    Célio Roberto de Oliveira

    2011-06-01

    Full Text Available The purpose of the word was to evaluate the nutritional value of fresh forage of different shoot fractions of four cassava varieties grown in the North of Minas Gerais. The experiment was carried out at the Experimental Farm of UNIMONTES, located in Janaúba district. A complete randomized block design was used with 4 x 3 factorial , with four replications and four cassava varieties (“Amarelinha”, “Olho Roxo”, “Periquita” and “Sabará” and three forms of shoot exploitation (Whole Plant, Superior Third, Remains of Planting. When the roots were picked, it was also collected fresh material samples from the different varieties and shoot fractions, and taken to the laboratory so that analyses could be made for determination of nutritional value. The variety “Sabará” stood presenting the greatest total digestible nutrients content. The varieties “Sabará” and “Periquita” showed a lower fraction C content in the fractionization of carbohydrates and greater content of Fraction B2 of carbohydrates. The values of total digestible nutrients were similar for the different shoot fractions of cassava. The whole plant fraction stood out as for total carbohydrates content and as for the lowest lignin content, which influenced directly the low fraction C content and the largest fraction B2 content of carbohydrates. It is possible to concluded that the shoot of “Sabará” and “Periquita” varieties showe the best results in the nutritional evaluation.Objetivou-se avaliar o valor nutricional da forragem fresca de diferentes frações da parte aérea de quatro variedades de mandioca cultivadas no Norte de Minas Gerais. O experimento foi conduzido na Fazenda Experimental da UNIMONTES, localizada no município de Janaúba. Utilizou-se um delineamento em blocos casualizados, com esquema fatorial 4 x 3, com quatro repetições, quatro variedades de mandioca (Amarelinha, Olho Roxo, Periquita e Sabará e três formas de aproveitamento

  8. Aprovechamiento de la semilla de aguacate variedad Lorena como un colorante natural y del aceite de mesocarpios residuales de la variedad Hass como componentes funcionales en un jabón líquido

    OpenAIRE

    Hennessey Ramos, Licelander

    2017-01-01

    Tesis (Maestría en Desarrollo Sostenible y Medio Ambiente). Universidad de Manizales. Facultad de Ciencias Contables, Económicas y Administrativas. CIMAD, 2017 El presente trabajó exploró dos alternativas para el aprovechamiento de residuos generados por semilla de Persea Americana Mill Variedad Lorena, la primera, mediante la obtención de extractos acuosos tipo colorante de Agua, Solución acuosa de NaOH al 0.5% y mezcla de 50% Agua y 50% Alcohol etílico manteniendo constante la relació...

  9. Carcinoma vulvar

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    Yamit Peñas Zayas

    2015-11-01

    Full Text Available El carcinoma de la vulva tiene una incidencia de aproximadamente un 3-5% dentro de todas las enfermedades ginecológicas malignas. El 90% de los tumores malignos de la vulva está constituido por carcinoma epidermoide, el resto son adenocarcinomas, carcinomas de células basales y melanomas. Se realiza la presentación de un caso de una paciente femenina de 25 años de edad con antecedentes  de Diabetes Mellitus tipo II y trombopatia, que ingresa en el servicio de ginecología con un cuadro cutáneo polimorfo, localizado en labios mayores y menores, dado por lesiones eritematoerosivas y vegetante, sospechándose clínicamente el diagnóstico  de un carcinoma epidermoide, corroborándose el mismo histológicamente al realizarse biopsia de piel. Se indicó tratamiento con quimioterapia. Por la edad de la paciente y ser menos frecuente en mucosa que en la piel,  motivo la presentación del caso.

  10. Efecto de variedades de algodón genéticamente modificadas sobre larvas de Spodoptera frugiperda Smith (Lepidoptera: Noctuidae

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    Sandra Jimena Valencia Cataño

    2014-01-01

    Full Text Available Spodoptera frugiperda es una plaga polífaga de importancia económica en países tropicales y subtropicales. En Colombia ataca el algodonero (Gossypium hirsutum L., cultivo que ha tomado importancia gracias a la adopción de variedades genéticamente modificadas (GM. En el estudio se determinaron los efectos subletales de algunas de estas variedades sobre larvas de este insecto. Para el efecto, en condiciones de laboratorio (27°C, 65 ± 10% HR y 12 h fotoperiodo se evaluaron las variedades NuOPAL RR (proteína Cry1Ac, DP141 B2RF (proteínas Cry1Ac+Cry2Ab y DeltaOPAL RR (no Bt. Los parámetros evaluados fueron: (a peso de larvas, (bpeso de heces, (c peso del alimento ofrecido y (d peso del alimento no consumido. Como índices de consumo y digestibilidad se calcularon la tasa relativa de consumo (TRCo, la tasa relativa de crecimiento (TRCr, la eficiencia de conversión del alimento ingerido (ECI y la digestibilidad aproximada (DA. Los índices mostraron actividad antialimentaria de la variedad DP141 B2RF (Cry1Ac+Cry2Ab que afecta de forma negativa la tasa de crecimiento y la conversión del alimento por parte de las larvas. El peso de las larvas alimentadas en DP141 B2RF (Cry1Ac+Cry2Ab fue 58.6% menor que en la variedad no Bt. Los resultados muestran un efecto adverso de la variedad DP141 B2RF (Cry1Ac+Cry2Ab en el desarrollo larval de S. frugiperda. Se confirman los efectos antibióticos de las variedades GM evaluadas que inciden en un menor desarrollo y en la supervivencia de las larvas.

  11. Comportamiento Agronómico de seis variedades de Cebada (Hordeum Vulgare en tres localidades, Provincia de Santa Elena.

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    Néstor Orrala B

    2015-10-01

    Full Text Available En la península de Santa Elena de mayo a diciembre, las temperaturas giran alrededor de 22 ºC, , lo que podría ser un medio adecuado para muchos cultivos andinos. El estudio exploratorio tuvo como objetivo verificar el comportamiento agronómico de variedades de cebada: Terán, Cañicapa 03, Clipper , Grit, Metcalfe y Scarlett en tres ambientes de la provincia de Santa Elena. Variables evaluadas: germinación, ahijamiento, encañado, espigado, maduración, altura de planta, número de macollos, longitud de espiga, cantidad de granos llenos y vanos, peso 1 000 semillas, rendimiento por hectárea, más análisis económico. Los resultados concluyen que las etapas fenológicas son más cortas en la Costa que en la Sierra, pudiéndose afirmar que el ciclo vegetativo de los germoplasmas está determinado por la interacción genotipo-ambiente y por las características varietales de cada cultivar. Las variedades Metcalfe, Scarlett y Clipper alcanzan rendimientos entre 3,55 y 4,35 toneladas por hectárea. El costo de producción por hectárea es mayor con relación a la sierra, lo que se explica en el mayor uso del recurso agua.Palabras claves: Cebada, comportamiento, variedades, épocas, adaptación.

  12. EVALUACIÓN QUIMICA DE LA FIBRA EN SEMILLA, PULPA Y CÁSCARA DE TRES VARIEDADES DE AGUACATE

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    ADELA MARÍA CEBALLOS P

    Full Text Available El sector agropecuario colombiano requiere integrarse al sector agroindustrial para aumentarle valor a sus productos y residuos. Utilizar residuos agrícolas y agroindustriales como materias primas para obtener metabolitos secundarios es tema de interés en investigación y busca dar respuestas al uso de esos residuos, mediante desarrollo de tecnologías aplicables al entorno colombiano. Se valoraron cáscara, semilla y pulpa de aguacate variedades Booth8, Trinidad y Papelillo en estados de madurez fisiológica (MF y consumo (MC. Se hizo caracterización bromatológica, contenido de fibra como carbohidratos solubles (CHOS, lignina LG, celulosa y hemicelulosa (CEL y HEMICEL y fibra bruta (FB según (Tappi Methods 1993, 1998, AOAC, 2001. Los resultados fueron analizados mediante ANOVA (P < 0,05 utilizando SAS V9.1. Los CHOS en los dos estados de madurez y para las tres variedades variaron entre 12-38% cáscara, 20-35% pulpa y 17-35% semilla; CEL y HEMICEL 8-50% cáscara, 7-26% pulpa, 1-5% semilla, los cuales pueden ser útiles como complementos de procesos biotecnológicos. La pulpa de las tres variedades tiene alto valor nutricional por sus contenidos de proteína, fibra y minerales. La composición de la cáscara y semilla podrían ser importantes para suplementos de dieta animal o como recuperador de suelos para la producción agrícola

  13. CAMBIOS FISIOLÓGICOS, TEXTURALES Y FISICOQUÍMICOS DE DOS VARIEDADES DE CHONTADURO (Bactris gasipaes EN POSCOSECHA

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    JHON ALEXANDER DAZA

    Full Text Available El chontaduro es una de las frutas exóticas más importantes para Colombia debido su considerable aporte en nutrientes y a que posee 8822 hectáreas sembradas en los departamentos de Valle del Cauca, Cauca y Putumayo. Se evaluaron los cambios ocurridos en dos variedades del fruto de chontaduro (roja y amarilla, durante el periodo poscosecha, bajo condiciones ambientales provenientes del Municipio de El Tambo (Cauca para brindar una guía de compra y venta que ayude en su comercialización. La pérdida de peso, amplitud, longitud y la proporción pulpa-cascara-semilla fueron directamente proporcionales a la pérdida de agua en la maduración. En cambio, el contenido de grasas y los sólidos solubles totales fueron inversamente proporcionales. La firmeza permitió diferenciar frutos frescos de frutos sobremadurados, al evidenciar una considerable variación en la resistencia a la penetración pasando de 39,5358N hasta 23,6431N en variedad roja y de 19,6353N hasta 11,7463N en variedad amarilla. De acuerdo con el comportamiento observado en la concentración de O2 y CO2, como también en los cambios físicos y químicos en el fruto de chontaduro, se puede afirmar que este producto es climatérico, lo cual indica que el tiempo de comercialización es corto, ya que sigue madurando incluso después de haber sido cosechado.

  14. Manejo alternativo de sigatoka negra, utilizando biofertilizantes, en plantaciones comerciales de banano cavendish, variedad williams, canton taura

    OpenAIRE

    Maura, Luis; Maria Isabel, Jimenez

    2009-01-01

    El proyecto se oriento al estudio del efecto de los biofertilizantes líquidos en un predio bananero comercial con un sistema de producción orgánico, situado en la provincia de El Guayas. El material vegetal fue banano, Grupo Cavendish, variedad Williams (AAA). Los biofertilizantes en estudio fueron productos orgánicos del tipo foliar y radicular en comparación con sus mezclas y un control absoluto (no aplicación). La hacienda elabora sus productos a base de estiércol fresco de ganado vacuno,...

  15. Evaluación del comportamiento agroindustrial de variedades de duraznos conserveros (Prunus persica (L. Batsch en Mendoza, Argentina

    Directory of Open Access Journals (Sweden)

    Miguel Alejandro Ojer

    2010-06-01

    Full Text Available Con el objeto de aumentar los rendimientos a campo, mejorar la calidad de la materia prima y sentar las bases de futuros programas de introducción de nuevas variedades, se evaluaron 13 variedades de duraznos conserveros. A fin de dar marco a la propuesta, se analizó la situación del sector industrial, el sector de producción primaria y el panorama varietal. Se efectuaron mediciones en 5 áreas: maduración, comportamiento en la cosecha, capacidad productiva, parámetros vinculados al procesamiento en mitades y comportamiento en la agroindustria. Las determinaciones se realizaron durante 6 temporadas en 2 montes frutales en plena producción comercial. La oferta varietal se caracterizó por una sobreoferta (56,0 % del total implantado entre la última semana de enero y primera de febrero, y una escasa oferta, tan sólo del 12,2 %, a partir de mediados de febrero. Se observó un progresivo y sostenido reemplazo de las máquinas descarozadoras de torsión por las de sección. El máximo valor de la producción depende de los rendimientos, el peso de los frutos y su distribución en categorías comerciales. Sólo las variedades, Fortuna, Loadel y Carson, no superaron el nivel de producción mínimo (40 t/ha, pretendido por el sector primario. Sullivan’s Late mostró un comportamiento errático, con años de alto rendimiento y otros con baja producción. El rendimiento industrial es función principalmente del peso de frutos y la firmeza de pulpa. En el ingreso a la línea de procesamiento, la firmeza de pulpa debe estar en el rango 6 a 12 lb, aunque el óptimo es de 7 a 10 lb. Una visión integral del problema indica que la definición de la carga frutal óptima para cada variedad y el manejo de la cosecha son los dos factores determinantes del rendimiento en campo, la calidad de la materia prima y del rendimiento industrial.

  16. Evaluación del comportamiento agroindustrial de variedades de duraznos conserveros (Prunus persica (L. Batsch en Mendoza, Argentina

    Directory of Open Access Journals (Sweden)

    Miguel Alejandro Ojer

    2010-07-01

    Full Text Available Con el objeto de aumentar los rendimientos a campo, mejorar la calidad de la materia prima y sentar las bases de futuros programas de introducción de nuevas variedades, se evaluaron 13 variedades de duraznos conserveros. A fin de dar marco a la propuesta, se analizó la situación del sector industrial, el sector de producción primaria y el panorama varietal. Se efectuaron mediciones en 5 áreas: maduración, comportamiento en la cosecha, capacidad productiva, parámetros vinculados al procesamiento en mitades y comportamiento en la agroindustria. Las determinaciones se realizaron durante 6 temporadas en 2 montes frutales en plena producción comercial. La oferta varietal se caracterizó por una sobreoferta (56,0 % del total implantado entre la última semana de enero y primera de febrero, y una escasa oferta, tan sólo del 12,2 %, a partir de mediados de febrero. Se observó un progresivo y sostenido reemplazo de las máquinas descarozadotas de torsión por las de sección. El máximo valor de la producción depende de los rendimientos, el peso de los frutos y su distribución en categorías comerciales. Sólo las variedades, Fortuna, Loadel y Carson, no superaron el nivel de producción mínimo (40 t/ha, pretendido por el sector primario. Sullivan’s Late mostró un comportamiento errático, con años de alto rendimiento y otros con baja producción. El rendimiento industrial es función principalmente del peso de frutos y la firmeza de pulpa. En el ingreso a la línea de procesamiento, la firmeza de pulpa debe estar en el rango 6 a 12 lb, aunque el óptimo es de 7 a 10 lb. Una visión integral del problema indica que la definición de la carga frutal óptima para cada variedad y el manejo de la cosecha son los dos factores de determinantes del rendimiento en campo, la calidad de la materia prima y del rendimiento industrial.

  17. Análisis crítico de un discurso en la variedad del español andino

    OpenAIRE

    Espinosa Santos, Victoria

    1999-01-01

    Se presenta un análisis crítico de un discurso en la variedad andina del español de Chile con el propósito de verificar los vínculos existentes entre estructuras, estrategias y otros elementos del texto, y la visión de mundo del habitante aymara del norte de Chile. El discurso es una entrevista y se analizan el léxico, la morfosintaxis, la entonación y otras propiedades del texto que muestran cómo el sujeto produce y comprende el mundo que lo rodea. Los resultados del análisis evidencian la p...

  18. Papillary carcinoma

    International Nuclear Information System (INIS)

    Shah, D.H.; Samuel, A.M.

    1999-01-01

    Papillary carcinoma of the thyroid (PTC) constitutes a major proportion of all thyroid cancers and is generally believed to be a slow growing tumor with an indolent course. The diagnosis of PTC often makes the physician overly optimistic and complacent and yet this tumor can be aggressive in a subset of patients leading to death in a few months. The fundamental but subtle differences underlying the extremes in biologic behaviour of this complex and fascinating tumor remain poorly understood. Although there is a general agreement among the investigators regarding prognostic factors, controversy exists about the management of the disease. There is divided opinion with respect to the type and extent of surgery and the need for radioiodine (1 31 I) treatment in case of PTC. The experiences at Radiation Medicine Centre (RMC) of 1904 cases of differentiated thyroid carcinoma (DTC) registered during the period 1963-1990 are reviewed

  19. Thyroid carcinoma

    International Nuclear Information System (INIS)

    Lambertini, Roberto; Dalurzo, Liliana; Jaen, Ana del V.

    2008-01-01

    In this document the case of a 66-year old woman is presented, with record of multi nodular goiter of 5 year of evolution, which is derived to scan ultrasound office to make a puncture-aspiration with thin needle because of the growth of nodular thyroid injuries. The ultrasound scan examination made before the puncture determine multiple dominant nodules of hyperplasia aspect between 15 and 25 mm of diameter and a small nodule of 6 mm suspected proliferate process. Despite its size, it was decided to include small nodule in injuries to a biopsy. The cytological study reveals nodular hyperplasia with carcinoma in the small nodule of 6 mm. A thyroidectomy is practiced on the patient. The deferred histological study of the thyroid gland confirms the finding of multi-nodular goiter with a small focus of papillar carcinoma. The ganglions examined were negative in the deferred examination [es

  20. Rectal carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Fossati, V; Antognoni, P; Villa, E and others

    1985-01-01

    Records of 135 patients with rectal carcinoma were reviewed and correlations between survival rate, extent of tumor and radiotherapy were investigated. The survival rate at 5 years was 16% for C Astler Coller's stage patients and without metastases, but the prognosis was much less favourable for advanced tumors and/or subjects with distant metastases. Preliminary results of another series of patients treated with adjuvant radiotherapy are discussed.

  1. Embarazo y carcinoma de cuello uterino en vidrio esmerilado: reporte de un caso.

    OpenAIRE

    Mario Nicolás Albani Pérez; Thamara Josefina Ortiz Maraima; Luis Bracamonte

    2010-01-01

    En Venezuela, el cáncer de cérvix es la primera causa de muerte por neoplasias en la mujer, con 2.500 defunciones anuales. Puede ser diagnosticado durante el embarazo, e incluso, histopatológicamente expresarse en variedades infrecuentes y agresivas como el carcinoma de cuello uterino en patrón de vidrio esmerilado. Se reporta un caso de gestante de 28 años de edad, multípara, con embarazo de 17 semanas de evolución por ecosonograma transabdominal quien acude al Hospital Universitario "Dr. Lu...

  2. Eficacia de Medios de Cultivo con Infusiones de Variedades de Papa en la Identificación del Trichophyton rubrum

    Directory of Open Access Journals (Sweden)

    Flor Urcia A

    Full Text Available El objetivo del presente estudio fue demostrar la eficacia de los extractos de diferentes variedades de papa como ingredientes del medio de cultivo para la identificación del Trichophyton rubrum y proponer su empleo en el diagnóstico de dermatomicosis. Se utilizaron las infusiones naturales de las variedades Solanum tuberosum (papa blanca, Solanum chaucha (papa huayro y Solanum goniocalyx (papa amarilla, para preparar los medios de cultivo análogos al estándar de formulación comercial Agar Papa Dextrosa (APDc. Las cepas de T. rubrum fueron inoculadas en los diferentes medios de cultivo, incubados a 2°C durante 10 días. Para la evaluación consideramos características culturales y microscópicas. Los resultados muestran que el medio de cultivo Agar Papa Huayro Dextrosa (APHD fue más eficiente en la producción del pigmento rojo vino, pero se obtuvo mayor esporulación en los medios de cultivo Agar Papa Blanca Dextrosa (APBD y Agar Papa Amarilla Dextrosa (APAD.

  3. Bayo Azteca, primera variedad mejorada de frijol con resistencia a Apion godmani Wagner Bayo Azteca, first improved bean variety with resistance to Apion godmani Wagner

    OpenAIRE

    Ramón Garza-García; Carmen Jacinto-Hernández; Dagoberto Garza-García

    2010-01-01

    Bayo Azteca, la primera variedad mejorada de frijol (Phaseolus vulgaris L.), con resistencia a una plaga insectil, ha sido obtenida por el programa de frijol del Campo Experimental Valle de México, del Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias por cruzas múltiples, esto involucró un largo proceso de mejora genética. Bayo Azteca es la primera variedad mejorada resistente al picudo del ejote (Apion godmani Wagner), un curculiónido que ataca al frijol en las zonas t...

  4. Estudio de las propiedades fisico químicas y calidad nutricional en distintas variedades de frijol consumidas en México

    Directory of Open Access Journals (Sweden)

    América Fernanda Fernández Valenciano

    2017-01-01

    Full Text Available Introducción : El frijol común ( Phaseolus vulgaris L. es la leguminosa más importante para consumo humano en el mundo , es una fuente importante de proteína, calorías, vitamin as del complejo B y minerales . P o r lo que el objetivo del trabajo de investigación fue estudiar las propiedades f isico químicas y la calidad nutricional en las principales variedades de frijol consumidas y producidas en México, con el propósito de conocer sus beneficios nutricionales para el consumidor. Método : En este estudio se seleccionaron seis variedades de frijol más representativas y consumidas en México : Bayo, Negro, Peruano, Flor de Mayo, Alubia y Pinto, así como, una varieda d de frijol ejotero. A estas variedades se les determin aron las propiedades fisicoquímicas, C, H y N por medio del Analizador Orgánico Elemental Flash 2000. La determinación de Cu, Fe, Zn, Ni, Na, K, Ca y Mg se de terminó por espectrofotometría de absorción atómica y el P se terminó por espectrofotometría y metavandato - molibdato de amonio . Resultados : Se encontraron diferencias significativas en las propiedades f isico químicas, así como, en el contenido de macro y micronutrientes en las diferentes variedades de frijol estudiadas. En general, sobresali ó el frijol ejotero en las propiedades f isico químicas, contenido de micronutrientes y macronutrientes en relación a las variedades de frijol en grano. Discusión o Conclusión : La semilla del ejote presentó las máx imas concentraciones en proteína, N, P, K, Mg, Fe y Zn, mientras que las variedades de frijol de grano estudiadas sobresalieron en fibra (Alubia, proteínas (Pinto y Bayo, en Fe (Flor de Mayo. Por ú ltimo , resaltar que la variedad de frijol de grano estud iada que p resent ó un aporte bajo en proteína, contenido de N, Mg y Ca fue la variedad Frijol Peruano. Finalmente, se concluye que el frijol ejotero representa un gran beneficio para el consumidor por el aporte de prote

  5. Teor de óleo e de cafeína em variedades de café Oil and caffeine content in the coffee bean

    Directory of Open Access Journals (Sweden)

    J. S. Tango

    1963-01-01

    Full Text Available Determinou-se a porcentagem de óleo e de cafeína em sementes de diversas variedades de Coffee arabica. As sementes provieram de frutos despolpados, secos em terreiro sem despolpar, ou secos na própria planta. O tratamento des frutos influiu sôbre o teor de óleo, sendo também significativa a diferença entre as variedades. Os dados confirmam resultados anteriores de que a variedade mucronata é rica e a, variedade laurina, pobre, em óleo. No que concerne ao teor de cafeína, o tratamento dos frutos não mostrou influência, mas pronunciada diferença se constatou entre as variedades. Sete das variedades se mostraram mais pobres do que o café 'Sumatra', tomado comg padrão. A variedade laurina destacou-se das demais pelo baixo teor dêsse alcalóide com, aproximadamente, a metade do nível encontrado nas demais variedades analisadas, o que a torna valiosa para um piano de melhoramento visando a redução do nível de cafeína nas sementes.Oil and caffeine contents were determined for seed samples obtained from cherries of sixteen varieties of Coffea arabica which were submitted to three types of treatments pulped, non pulped and left to dry with pericarp in the sun, or naturally dried on the tree. Cherry processing seems not to have influence on the oil content in the seeds (table I, but significant differences were noted among the varieties with respect to this characteristic. Mucronata revealed to have high oil content while the laurina is a low oil producing variety. Coffee cherries left to dry on the trees gave lower caffeine content. Seven of the sixteen varieties presented a lower caffeine content than the standard 'Sumatra'. The laurinis variety had an exceptional lower caffeine content of about half the amount found in the control. Laurina characteristics are controlled by a recessive allele lr with strong pleiotropic effects. It is not yet known how the laurina allele affects the chemical reactions which lead to a so low caffeine

  6. Caracterización física del fruto en variedades de plátano cultivadas en la zona cafetera de Colombia

    Directory of Open Access Journals (Sweden)

    Francisco Javier Castellanos Galeano

    2011-04-01

    Full Text Available Se analizaron el peso, la longitud, el diámetro central y la densidad de frutos con cáscara y sin ella, y la materia seca (MS de las variedades de plátano del grupo Plantain (AAB: África, Dominico Hartón, Cubano Blanco y Hartón, además las del grupo Bluggoe (ABB: Cachaco o Popocho, y los híbridos (AAAB: FHIA 20 y FHIA 21 repetidas dos veces, con excepción del hibrido FHIA 21 que tenía una repetición. Las variedades Cachaco, Cubano Blanco y Hartón se cosecharon en el área rural de los municipios de Padilla y Guachené (28 °C, 1500 mm/año, humedad relativa de 65%, a 1000 m.s.n.m., departamento del Cauca, Colombia. Las demás variedades provenían del municipio de Palestina (22.5°C, 2100 mm/año, humedad relativa de 76%, 1050 m.s.n.m. departamento de Caldas, Colombia. Las variables peso, longitud y diámetro central fueron mayores en las variedades África, Hartón y Dominico Hartón, mientras que las variedades FHIA 20 y Cachaco presentaron valores de estas variables por debajo del promedio del grupo en estudio, excepto en el contenido de cáscara donde presentaron los valores más altos. El contenido de materia seca fue más alto en los cultivares Cubano Blanco y Dominico Hartón y menores en las variedades Cachaco y FHIA 20. Se observó un comportamiento homogéneo en todas las variables físicas entre las variedades que pertenecen al grupo Plantain, por ello resaltan las variedades Hartón y Dominico Hartón como las más homogéneas en todas las variables físicas.

  7. ETIOLOGÍA Y RESPUESTA DE VARIEDADES DE CRISANTEMO A LA PUDRICIÓN DEL TALLO EN EL ESTADO DE MÉXICO

    Directory of Open Access Journals (Sweden)

    R. Solano-Baez

    2013-01-01

    la enfermedad se evaluó de acuerdo a una escala 0-6 a los 15 días después de la inoculación. Los resultados indicaron que las seis variedades evaluadas mostraron ser susceptibles a la infección. ‘Polar’, ‘Leonora’, ‘Indianápolis’ y ‘Codorniz’ se comportaron como las variedades más susceptibles, mientras que ‘Puma’ y ‘Spider’ exhibieron cierta tolerancia.

  8. Oral Rigosertib for Squamous Cell Carcinoma

    Science.gov (United States)

    2017-06-22

    Head and Neck Squamous Cell Carcinoma; Anal Squamous Cell Carcinoma; Lung Squamous Cell Carcinoma; Cervical Squamous Cell Carcinoma; Esophageal Squamous Cell Carcinoma; Skin Squamous Cell Carcinoma; Penile Squamous Cell Carcinoma

  9. Hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Farooqi, J.I.; Farooqi, R.J.

    2001-01-01

    Hepatocellular carcinoma (HCC) is a common cause of cancer mortality. Hepatitis B and C viruses, aflatoxin and alga toxin in the contaminated drinking water are the major etiological factors. Rapidly progressing medical imaging has resulted in the improved treatment results. Surgical resection has a major role for influencing prognosis of HCC. Local cancer therapies based on the advances in early diagnosis are progressing rapidly. Multimodality combination and sequential treatment has proved effective, unfortunately systemic chemotherapy for HCC remains disappointed. All of these have resulted in the improved prognosis of HCC. (author)

  10. Parotid carcinoma

    DEFF Research Database (Denmark)

    Godballe, Christian; Schultz, Joyce H; Krogdahl, Annelise

    2003-01-01

    -year recurrence-free survival of the entire study group was 63%, disease-specific survival was 69%, and crude survival was 52%. In univariate analysis, tumor size, histological appearance, T status, stage, the presence of lymph node metastases, distant metastases, pain, and facial nerve dysfunction had...... a significant influence on survival. CONCLUSIONS: A thorough histological revision is pivotal in retrospective parotid carcinoma studies, and tumor size; histological appearance; T, N, and M status; stage; facial nerve dysfunction; and pain from the face and/or neck seem to be significant prognostic indicators...

  11. Carcinoma Basocelular

    Directory of Open Access Journals (Sweden)

    Inês Alencar de Castro

    2008-03-01

    Full Text Available Vemos na região frontal de um paciente masculino, fototipo II de Fitzpatrick, lesão ulcerada com bordas papulosas róseas e peroladas, correspondendo a Carcinoma Basocelular. É lesão maligna originária das células não- queratinizadas da camada basal da epiderme, sendo a forma mais comum de câncer em humanos. Estima-se em torno de 100.000 casos/ano no Brasil. Ocorre predominantemente em pele exposta de indivíduos com pouca capacidade de se bronzear. Pode se tornar invasivo, mas raramente metastatiza.

  12. Comportamiento morfoagronómico de variedades de morera (Morus alba L. durante el establecimiento Morphoagronomic performance of mulberry (Morus alba L. varieties during the establishment

    Directory of Open Access Journals (Sweden)

    Gertrudis Pentón

    2007-09-01

    Full Text Available En áreas de la EEPF "Indio Hatuey" se realizó un estudio con el objetivo de evaluar el comportamiento morfoagronómico de cuatro variedades de morera (Morus alba L. (Criolla, Indonesia, Cubana y Tigreada, durante la etapa de establecimiento de plantas trasplantadas. El material vegetativo (posturas fue aviverado durante 120 días. La dinámica de emergencia de las yemas fue significativamente superior en las variedades Indonesia, Tigreada y Cubana con respecto a la Criolla. La variedad Tigreada alcanzó la mayor tasa promedio de desarrollo de nuevas ramas (0,25 ramas/día, aunque sin diferencias significativas respecto a las restantes variedades. La longitud de las ramas tendió a ser superior en la var. Tigreada (0,89 cm promedio por día, seguida por las variedades Indonesia, Cubana y Criolla (0,77; 0,73 y 0,63 cm/día, respectivamente. Sin embargo, el grosor de las ramas fue mayor en las variedades Cubana y Criolla. La variedad Indonesia se caracterizó por un significativo crecimiento en altura y grosor de la base del tallo principal (154 cm y 14,6 mm respecto al resto de las variedades. Todo ello tuvo una repercusión marcada en la producción de hojas, en lo cual se destacó la variedad Tigreada; le siguieron, aunque con diferencias significativas entre ellas, las variedades Indonesia, Cubana y Criolla. Se concluye que Tigreada e Indonesia resultaron ser las variedades de mejor comportamiento morfoagronómico durante el establecimiento; la primera se caracterizó por un alto potencial de producción de hojas y la segunda por una notable capacidad de acumulación de tejido leñoso.A study was carried out in areas of the EEPF "Indio Hatuey" in order to evaluate the morphoagronomic performance of four mulberry (Morus alba L. varieties (Criolla, Indonesia, Cubana and Tigreada, during the establishment stage of transplanted plants. The vegetative material (seedlings was placed in a nursery for 120 days. The bud emergence dynamics was

  13. RESPUESTA A LA SELECCIÓN PARTICIPATIVA EN VARIEDADES DE CALABAZA DE LA SIERRA NORTE DE PUEBLA, MÉXICO

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Sánchez-Hernández

    2014-01-01

    Full Text Available Se realizó un estudio en la Universidad Autónoma Chapingo, Estado de México, durante 2001, con el objetivo de estimar en calabaza (Cucurbita pepo L. la respuesta a la selección participativa in situ en caracteres de planta, calidad de fruto y rendimiento de semilla. Se evaluaron dos variedades de la Sierra Norte de Puebla seleccionadas in situ: Mazapa (ciclos de selección 1 a 3, La Libertad (ciclos de selección 1 a 3 y un testigo, a una densidad de 27,639 plantas·ha-1, en un diseño de bloques completos al azar con cuatro repeticiones. La mayor respuesta por ciclo de selección, en promedio de localidades, ocurrió en la variedad Mazapa para número de frutos por planta (0.29 frutos; 31.8 %, altura (1.0 cm; 6.1 % y ancho de fruto (0.5 cm; 2.4 %, grosor de pulpa (0.1 cm; 5.8 %, altura (0.034; 1.6 % y ancho de semilla (0.001 cm; 0.11 %. La va- riedad La Libertad destacó en peso de semilla por fruto (12 g·fruto-1; 21 % y en peso de frutos por planta (0.1 kg·fruto-1; 6.6 %. El segundo ciclo de selección de la variedad Mazapa sobresalió en peso de fruto (3.77 kg, peso de semilla por planta (98 g, grosor de pulpa (2.6 cm, alto de fruto (23.6 cm, ancho de fruto (20.3 cm y ancho de semilla (0.934 cm. El tercer ciclo de selección en Mazapa mostró los valores más altos en número de frutos por planta (1.49, peso de fruto por hectárea (123.5 t·ha-1 y rendimiento de semilla por hectárea (3.83 t·ha-1.

  14. Carcinoma gallbladder.

    Science.gov (United States)

    Biswas, P K

    2010-07-01

    Carcinoma gallbladder (CaGb) is a rare disease. The aetiology of CaGb is yet not known. However the risk of CaGb is increased in anomalous pancreaticobiliary duct junction (APBDJ), gall stones, xanthogranulomatus cholecystitis, calcified or porcelain gallbladder, cholelithiasis with typhoid carriers, gallbladder adenoma, red meat consumption and tobacco uses. There are protective effects of vegetables on CaGb. Most of the cases present with advanced disease. In early carcinoma of a gallbladder sign and symptoms mimic benign disease. The diagnosis is established by ultrasonography, computerized tomography and guided fine needle aspiration cytology (FNAC). Biochemical tests are of very little value in making a diagnosis. The treatment depends on the clinical stage at presentation. Surgery offers the best chance of cure. In stage T1a, laparoscopic or open cholecystectomy alone is curative, and in T1b, cholecystectomy with hepatoduodenal lymph node dissection without combined resection of an adjacent organ is required. Segment S4a+5 hepatectomy combined with extrahepatic bile duct resection (BDR) and D2 lymph node dissection is a highly recommended operation for the treatment of T2 and T3 CaGb. The dye injection method is useful in determining the appropriate extent of hepatic resection for advanced CaGb. Resurgery is required only in those cases where tumour has invaded the serosa and/ or adjacent structures when diagnosed postoperatively. Biliary bypass is required for palliation. Prognosis depends on early diagnosis and appropriate surgical excision.

  15. Actividad antioxidante e inhibidora de a-glucosidasa y a-amilasa de tres variedades de cebolla (Allium cepa L.

    Directory of Open Access Journals (Sweden)

    Leticia X. López-Martínez

    2014-01-01

    Full Text Available La cebolla (Allium cepa L. ha sido cultivada durante miles de años y es utilizada como un componente importante en la dieta del ser humano. Estudios recientes sugieren que su consumo puede reducir o prevenir problemas de salud como asma, enfermedades cardiovasculares y diabetes, debido a sus efectos antioxidantes. En este estudio se determinó el contenido de compuestos fenólicos totales, la capacidad antiradical y la inhibición de las enzimas α-glucosidasa y α-amilasa de extractos acuosos y etanólicos de tres variedades de cebolla (blanca, amarilla y morada. El contenido de compuestos fenólicos totales varió de 6.59 a 9.25 mg/100 g y la actividad antiradical expresada como % DPPH- se encontró entre 20.4% a 39.6% y de 46.8 a 89.2% para los extractos acuosos y etanólicos respectivamente. Todos los extractos etanólicos fueron capaces de inhibir la actividad α-glucosidasa y α-amilasa de 58% a 34%% y 33 y 22% respectivamente, mientras que los extractos acuosos fueron menos efectivos. Entre los extractos estudiados, el extracto etanólicos de cebolla morada presenta la mayor concentración de compuestos fenólicos totales y la mayor actividad antiradical e inhibidora de α-glucosidasa. Las diferencias encontradas entre la concentración de compuestos fenólicos y las distintas actividades estudiadas parecen depender del perfil único de compuestos fenólicos que posee cada variedad de cebolla.

  16. Respuesta fotosintética de algunas variedades de maíz, frijol y café

    Directory of Open Access Journals (Sweden)

    Anundo Polanía

    2009-06-01

    Full Text Available Con el objeto de caracterizar fotosintéticamente algunas variedades de maíz, frijol y café, se estudió el comportamiento de la rata de fotosíntesis neta, de la transpiración y de los diferentes tipos de resistencia foliar a ia difusión y fijación de CO2 en la hoja, frente a las variables temperatura, intensidad de luz y concentración de CO2 en el aire. La variedad de maíz ICA H 507 presentó un comportamiento típico de plantas C 4 con altas ratas de fotosíntesis neta, insaturación de luz y baja fotorespiración. El fríjol Dlacol Andino presentó bajas ratas de fotosíntesis, alta fotorespiración y saturación de luz a bajas Intensidades, características propias de plantas C3. Las dos varíedades de café, Típica y Caturra, presentaron bajas ratas de fotosíntesis, valores de fotorespiración cercanos a los del fríjol, comportamiento típico de plantas C3; no lo es su respuesta a la intensidad de luz, ya que se saturaron a intensidades más altas que las presentadas por plantas C3 reconocidas. Estas varíedades presentaron ratas de fotosíntesis mayores que las observadas por otros autores en plantas de café de más edad. Los resultados obtenidos brindan información útil acerca del comportamiento ecoflslológico de

  17. Evaluación de preservantes florales en la poscosecha de tres variedades de clavel estándar

    Directory of Open Access Journals (Sweden)

    López Paola

    2008-04-01

    Full Text Available

    En clavel es imprescindible el tratamiento poscosecha a base de tiosulfato de plata (STS, para garantizar una mayor longevidad floral; sin embargo, los tratamientos antietilénicos a base del ión plata implican contaminación ambiental. El objetivo de este estudio fue realizar la evaluación de diferentes compuestos en la poscosecha de clavel estándar variedades Nelson, Dream y Delphi, como posibles sustitutos del STS. Para este fin, se utilizaron tratamientos a base de STS, SR-AOA (ácido aminooxacético de liberación lenta y quitosan. En seguida a la cosecha de los tallos florales se realizó una simulación de viaje con una duración aproximada de 21 días; posteriormente, las flores fueron sometidas a evaluaciones de longevidad, velocidad de apertura, color y consumo de agua. En la evolución de la vida en florero, se observó la misma tendencia para las tres variedades: un primer grupo de mayor longevidad floral, conformado por los tratamientos a base de SR-AOA y STS, con un promedio de durabilidad de 14 a 20 días; y el segundo grupo, de menor longevidad floral, conformado por los tratamientos a base de quitosan, quitosan más ácido cítrico, quitosan más AOA y testigo absoluto, con una duración promedio de 6 a 8 días.

  18. Características del análisis proximal de harinas obtenidas de frutos de plátanos variedades Papocho y Pelipita (Musa ABB Simmonds

    Directory of Open Access Journals (Sweden)

    Pedro Juan Espitia-Pérez

    2013-07-01

    Full Text Available En el estudio se hizo un análisis proximal de las harinas crudas sin tratar obtenidas de frutos de las variedades de plátano Papocho y Pelipita (Musa ABB Simmonds no comerciales en diferentes etapas de desarrollo y se analizó su posible uso como materia prima alimenticia. Los resultados comparativos mostraron que los contenidos y porcentajes de fibra cruda en Papocho variaron entre 2.54 y 1.37% y en Pelipita entre 6.45 y 0.88%, la proteína cruda en Papocho entre 6.70 y 3.81% y en Pelipita entre 2.74 y 1.89%, la ceniza en Papocho entre 3.66 y 2.41% y en Pelipita entre 2.43 y 2.10%, y fueron afectados (P < 0.05 por la etapa de desarrollo de la fruta; mientras que la variedad de plátano afectó los contenidos de grasa en Papocho entre 0.64 y 0.48% y en Pelipita entre 0.55 y 0.35% en la harina de ambas variedades. En la variedad Pelipita el contenido de humedad (9.85% fue bajo. y presentó el mayor contenido de carbohidratos (85.86% a 77 días después de la floración.

  19. Composición esterólica de la fracción insaponificable del aceite de aguacate de distintas variedades

    Directory of Open Access Journals (Sweden)

    Martínez Nieto, L.

    1994-12-01

    Full Text Available The study of the sterolic composition of the unsaponifiable fraction of oil obtained from several varieties of avocados (Bacon, Fuerte, Hass, and Reed there is not any difference among several areas, sizes and pick up dates for the same variety, but there are differences that depend on the analysed variety, therefore it is possible to concluir that an itemized analysis of the sterolic composition of the oil may be an avocado variety indicator.

    El estudio de la composición esterólica de la fracción insaponificable de aceite obtenido de distintas variedades de aguacates (Bacon, Fuerte, Hass y Reed pone de manifiesto que no existen diferencias para una misma variedad incluso para distintas zonas, calibres y fechas de corte, pero si existen diferencias que dependen de la variedad analizada, pudiéndose concluir que un análisis detallado de la composición esterólica puede ser indicativo de la variedad de aguacate de que procede un aceite.

  20. Efecto de la temperatura sobre el crecimiento de plantas de papa (Solanum tuberosum L., variedades atlantic y 1625 frito lay, crecidas in vitro

    Directory of Open Access Journals (Sweden)

    Rafael Orozco

    2016-03-01

    Full Text Available En esta investigación, se estudio el efecto que causa sobre el crecimiento vegetativo de dos variedades de papa (1625 Frito Lay y Atlantic, el aumento de la temperatura en condiciones in vitro, para lo cual se usaron dos valores de temperatura (30/26 °C y 27/25 °C dia/noche. El medio de cultivo utilizado fue el MS (1962 de laboratorios Gibco, el cual se usó a razón de 17 g/L y se suplementó con vitaminas y aminoácidos del mismo medio. En ambas variedades la alta temperatura (30/26 °C causó una disminución en el diámetro del tallo y en el número de nudos por planta, así como un incremento en la longitud internodal y en la altura de la planta. Por otro lado, la alta temperatura disminuyó significativamente (P < 0,05 la longitud de la raíz en la variedad Frito Lay mientras que la variedad Atlantic mostró un incremento no significativo.

  1. Costos y rendimientos de producción de tres néctares de manzana (pyrusmalusl variedades Anna, Pensilvania y Winter

    Directory of Open Access Journals (Sweden)

    Darío Alberto Pinto Medina

    2016-12-01

    Full Text Available La agroindustria en Colombia se muestra como una alternativa para dar aprovechamiento eficiente a materias primas de origen agropecuario, especialmente aquellas que por parámetros de calidad, no salen al mercado y generan cuantiosas pérdidas a agricultores y ganaderos; esta investigación se basó principalmente en el aprovechamiento de la manzana (Pyrus malus L, se elaboró néctar con tres variedades producidas en el departamento de Boyacá, Colombia: Pensilvania, Anna y Winter y se evaluaron los rendimientos en extracción de pulpa, con pérdidas del 18,4% para Pensilvania 21,4%, para Anna y 30%en Winter. Se realizaron pruebas sensoriales para determinar el grado de aceptabilidad de los tres productos, observándose diferencias significativas en textura, y similitud en parámetros como olor, color y sabor; para dicho análisis se compararon las tres variedades con un néctar comercial. Se concluye que el costo de producción unitario para 900 ml de néctar de la variedad Pensilvania es de $4.999, Anna $5.100 y Winter $5.296 (pesos colombianos, esto se debe a mejores rendimientos en extracción de pulpa para la variedad Pensilvania, mostrando que los productos son competitivos en precio y calidad.

  2. Aspectos morfológicos de folhas na diferenciação de variedades de carambola Morphological aspects of leaves in differentiation of varieties of star fruit

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    Renata Aparecida de Andrade

    2007-08-01

    Full Text Available Em certas espécies vegetais, a distinção entre variedades pode ser realizada com base em aspectos morfológicos das folhas, o que permite a diferenciação mesmo quando não apresentam flores e/ou frutos. O presente trabalho foi realizado objetivando a distinção entre variedades de caramboleira (Averrhoa carambola L. através de aspectos foliares. Foram avaliadas quatro variedades de caramboleira: Arkin, B-10, Golden Star e Hart, com quatro repetições de 10 folhas cada. Pelos resultados obtidos no presente trabalho, conclui-se que há diferenças morfológicas foliares entre as variedades de caramboleira, permitindo a sua distinção, especialmente em condições de viveiro.In some vegetable species, the distinction among varieties can be done based on morphological aspects of the leaves that allow the differentiation even when they do not have flowers and/or fruits. The aim of this work was to differentiate the varieties of star fruit (Averrhoa carambola L. by foliar aspects. It was evaluated four varieties of star fruit: Arkin, B-10, Golden Star and Hart, with four replications containing 10 leaves in each one. The results obtained showed that exist morphological foliar differences among the varieties of star fruit, being permitted the distinction, especially in nursery conditions.

  3. Vulvar carcinoma

    International Nuclear Information System (INIS)

    Anderson, John M.; Cassady, J. Robert; Shimm, David S.; Stea, Baldassarre

    1995-01-01

    Purpose: Controversies exist regarding the use of radiation therapy in the treatment of vulvar carcinoma. A retrospective review was performed to evaluate our institution's experience with surgery and radiation for this disease. Methods and Materials: The medical records of 47 patients treated for squamous cell carcinoma of the vulva at our institution (1974-1992) were reviewed for TNM stage (AJCC criteria), treatment modality, and associated 5-year local control and survival based on Kaplan-Meier analysis. Results: Twenty-eight patients (60%) presented with Stage I and II disease and their 5-year survival was 69%. Stage III patients accounted for 12 (25%) of the patients and their 5-year survival was 73%. Seven patients presented with Stage IV disease and five died within 13 months of diagnosis after predominantly palliative therapy. The 40 patients with Stages I, II, and III disease were treated aggressively and were further evaluated for treatment-modality-associated survival and local control. Radiation therapy was used as primary treatment in nine patients, of whom seven were treated with radiation alone and two were treated postoperatively after wide excision. Surgery alone was performed in 31 patients consisting of either radical vulvectomy (20 patients) or wide excision (11 patients). When comparing outcomes of radical vulvectomy vs. radiation therapy, we noted that the 5-year actuarial survivals were comparable (74% for either modality), despite the presence of more favorable prognostic factors in the group treated with radical vulvectomy. Patients treated with wide excision alone had a trend for a poorer 5-year actuarial survival (51%) and local control (50%). Conclusions: Radical vulvectomy offers good locoregional control and survival. This retrospective review further supports the use of radiation therapy with conservative surgery as an alternative treatment option for patients with vulvar carcinoma treated with curative intent. In contrast, the use of

  4. Adaptación y rendimiento de la variedad de frijol “Negro Medellín” en el sureste de México

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    Ernesto L\\u00F3pez

    2000-01-01

    Full Text Available El presente estudio se llevó a cabo de 1994 a 1997 con el objetivo de evaluar la adaptación y rendimiento de la nueva variedad de frijol “Negro Medellín” en la región del Trópico Húmedo del sureste de México. Se condujeron diez ensayos de rendimiento, cinco en el estado de Veracruz, cuatro en Chiapas y uno en Guerrero. Los ensayos incluyeron 16 genotipos y se realizaron, de acuerdo a las facilidades disponibles en los sitios de prueba, bajo condiciones de humedad residual o de temporal. En las evaluaciones se utilizó un diseño de Bloques Completos al Azar con tres repeticiones. La variedad Negro Medellín resultó sobresaliente por su rendimiento, amplia adaptación, con respuesta superior en ambientes favorables y consistente (1226 kg/ha, bi >1,0, S2di = 0. Durante las evaluaciones, la variedad Negro Medellín resultó tolerante a las enfermedades: virus del mosaico dorado (BGMV, mancha angular (Phaoisariopsis griseola y roya (Uromyces appendiculatus var. appendiculatus, enfermedades de amplia distribución en la región tropical. Sin embargo, en una localidad de Veracruz Negro Medellín resultó susceptible a la antracnosis (Colletotrichum lindemuthianum. Además, la variedad Negro Medellín se validó en parcelas comerciales en campos de agricultores en diez localidades del sureste de México, localidades con clima tropical. En éstas parcelas comerciales, Negro Medellín resultó superior en rendimiento a diversos testigos, variedades criollas y mejoradas, de un 10 a 25%, obteniendo un rendimiento promedio de 1300 kg/ha. La variedad Negro Medellín está en trámite para su registro como nueva variedad para las regiones productoras del sureste de México

  5. Producción y desarrollo de nueve variedades de naranja Citrus sinensis (L. Osbeck en la zona plana del Valle del Cauca

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    Salazar C. Raúl

    1990-12-01

    Full Text Available En árboles de naranja de cinco años injertados sobre mandarina Cleopatra, se evaluaron nueve variedades sembradas en un diseño experimental de bloques completos al azar. El crecimiento de los frutos presentó las tres fases típicas, con duración variable dependiendo de la variedad: lento, crecimiento acelerado y estabilización. Los máximos crecimientos se obtuvieron en las variedades Old Vini, Valencia y Valle Washington. En todas las variedades los sólidos solubles disminuyeron y el porcentaje de acidez aumentó hasta ciertos límites con la edad del fruto. Considerando como momento óptimo para iniciar la cosecha una relación de sólidos solubles: acidez de 9.5:1, la más temprana fue la Valle Washington (7.5 meses, intermedias Old Vini y Australia Navel y la más tardía García Valencia. Todas las variedades presentaron contenidos de jugo mayores del 50 % Y color atractivo de la pulpa. El color más atractivo de la corteza se obtuvo en Parson Brown (97.5 % amarillo, las otras variedades fluctuaron entre 48 y 79%. Todas las variedades tuvieron menos de seis semillas por fruto. Se presentaron dos épocas de cosecha y las variedades con mayor producción: Hamlin, García Valencia y Pineapple tuvieron la mayor variación mensual. La mejor alternativa sembrando 90% de variedades para industria y 10 % para mesa se obtuvo con las variedades Pineapple, Hamlin, Parson Brown, Valle Washington y Old Vini.Five years old orange trees, were grafted on Cleopatra scions of nine cultivars planted in a completely randomized block design were evaluated. Fruit growths presented three typical phases of variable lenght, depending on the cultivar: slow , rapid and stable growth rates. Largest growth were observed in the old Vini, Valencia and Valle Washington cultivars. In all cases total soluble solid contents and acidity increased, up to certain point, with fruit age. Considering that the optimum time to iniciate cropping is when the relationship

  6. Oropharyngeal carcinoma

    International Nuclear Information System (INIS)

    Nose, Takayuki; Inoue, Takehiro; Inoue, Toshihiko

    1996-01-01

    From June 1993 through October 1996, nineteen oropharynx cancer patients (squamous cell carcinoma T1; 1, T2; 10, T3; 6, T4; 1, and adenocarcinoma T2; 1) were treated with high dose rate interstitial radiotherapy combined with moderate external radiotherapy. Fourteen patients (T1; 1, T2; 10 and T3; 3) were controlled locally and five patients (T3; 3, T4; 1 and adenocarcinoma; 1) were not. Temporary soft tissue necrosis were experienced among four patients. With short follow-up period xerostomia and dysgeusia were less than definitive external radiotherapy as clinical impression. In addition with markedly increased tumor dose the local control rate can be improved. This treatment method can be an alternative to definitive external radiotherapy to gain better QOL and higher control rate. (author)

  7. Giant basal cell carcinoma Carcinoma basocelular gigante

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    Nilton Nasser

    2012-06-01

    Full Text Available The basal cell carcinoma is the most common skin cancer but the giant vegetating basal cell carcinoma reaches less than 0.5 % of all basal cell carcinoma types. The Giant BCC, defined as a lesion with more than 5 cm at its largest diameter, is a rare form of BCC and commonly occurs on the trunk. This patient, male, 42 years old presents a Giant Basal Cell Carcinoma which reaches 180 cm2 on the right shoulder and was negligent in looking for treatment. Surgical treatment was performed and no signs of dissemination or local recurrence have been detected after follow up of five years.O carcinoma basocelular é o tipo mais comum de câncer de pele, mas o carcinoma basocelular gigante vegetante não atinge 0,5% de todos os tipos de carcinomas basocelulares. O Carcinoma Basocelular Gigante, definido como lesão maior que 5 cm no maior diâmetro, é uma forma rara de carcinoma basocelular e comumente ocorre no tronco. Este paciente apresenta um Carcinoma Basocelular Gigante com 180cm² no ombro direito e foi negligente em procurar tratamento. Foi realizado tratamento cirúrgico e nenhum sinal de disseminação ou recorrência local foi detectada após 5 anos.

  8. Cultivo do mirtilo: atualizações e desempenho inicial de variedades de baixa exigência em frio no Estado de Säo Paulo

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    Tatiana Cantuarias-Avilés

    2014-03-01

    Full Text Available A produção comercial de mirtilos na América do Sul tem passado por mudanças importantes nos últimos anos, em função do aumento da oferta de frutos frescos dos principais países produtores, causando forte queda de preços em plena safra, entre os meses de dezembro e fevereiro. Uma alternativa para esta situação é a produção de mirtileiros de maturação precoce ou muito tardia, fora da época de meia-estação, caracterizada pelos menores preços da fruta. Em 2010, foram introduzidas no Brasil novas variedades de mirtileiros de baixa exigência em frio desenvolvidas pela Universidade da Flórida, que podem ser cultivadas em regiões quentes e apresentam uma frutificação mais precoce, quando comparadas com as variedades tradicionalmente cultivadas no Brasil. Essas novas variedades apresentam grande potencial para a produção precoce de mirtilos no País em regiões sem frio hibernal, aumentando significativamente a rentabilidade da cultura. Para viabilizar esta produção, é necessário validar estratégias de manejo para estas variedades, devido à falta de informação técnica sobre seu cultivo nas condições edafoclimáticas brasileiras. Atualmente, estäo sendo conduzidas as primeiras pesquisas fitotécnicas no Estado de Säo Paulo para avaliar o crescimento e a produção destas variedades na ausência total de frio, situação de ocorrência particular em poucos países produtores do mundo.

  9. REACCIÓN DE VARIEDADES DE FRIJOL A LA INOCULACIÓN ARTIFICIAL DE Aphelenchoides besseyi, AGENTE CAUSAL DE LA FALSA MANCHA ANGULAR

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    Walter Barrantes-Santamar\\u00EDa

    2008-01-01

    Full Text Available Especímenes adultos y juveniles de A. besseyi provenientes de cultivo in vitro se inocularon sobre el follaje de plantas de frijol de las variedades Bribri, Huetar, Telire y Chirripó Rojo. Las edades de las plantas inoculadas en el invernadero fueron de diez, 20 y 30 días después de siembra (dds. Los bioensayos se realizaron en los invernaderos de la Escuela de Ciencias Agrarias de la Universidad Nacional, Heredia-Costa Rica en el 2006. El objetivo de esta investigación fue evaluar la reacción de variedades de frijol al nematodo A. besseyi. Las variedades estudiadas mostraron similar nivel de resistencia al ataque del nematodo, de acuerdo a la escala de severidad utilizada; sin embargo, las variedades Huetar y Bribri mostraron menor severidad de infección y población de nematodos que las otras dos variedades. Los primeros síntomas de la enfermedad se desarrollaron en las hojas primarias. El período de incubación fue más corto a medida que las inoculaciones se realizaron en plantas de mayor edad. Igualmente, las hojas maduras fueron más susceptibles que las jóvenes a la infección del nematodo. El desarrollo de la enfermedad difi rió entre hojas primarias y trifoliadas y dependió de la disponibilidad de tejido foliar, la madurez del follaje y la producción de inóculo secundario.

  10. Starch molecular fractionation of bread wheat varieties Fraccionamiento molecular del almidón de variedades trigo pan

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    V. Corcuera

    2007-06-01

    Full Text Available The starch composition of bread making wheat seeds (Triticum aestivum subsp. vulgare of the Argentine commercial varieties Buck Charrua, Buck Ombú, Buck Guaraní, Buck Catriel and Buck Poncho was analyzed by two different methods. One of these depends on the differential solubility of amylose and amylopectin in a water:butanol mixture whilst the other process is based on the use of the lectin Concanavalin A. These methods were complemented by spectrophotometric determinations to enable the identification of the á-D- glucanes and also improved the comparative quantitation of the amylose and amylopectin fractions. As a result of this, no significant variations for starch content (ANOVA, F4- 8= 0.7; p ≥ 0.05 were found among these varieties, although strong differences were found for amylose (ANOVA, F4- 8= 44.4; p ≥ 0.01 and amylopectin content (ANOVA, F4- 8= 77.1; p ≥ 0.01. These results and the fact that no differences were found for amylose (ANOVA, F2- 8= 0.3 and amylopectin among years within the same variety (ANOVA, F2- 8:0.8 at p ≥0.01 led to the conclusion that the diverse properties and end-uses of the starch mainly depend on the genotype, and that starch quality is null or scarcely influenced by the environment. This knowledge must be taken into account for wheat breeding purposes.Se analizó la composición del almidón de granos de trigo pan (Triticum aestivum subsp. v u l g a r e de las variedades comerciales argentinas Buck Charrúa, Buck Ombú, Buck Guaraní, Buck Catriel y Buck Poncho mediante dos métodos diferentes. Uno de ellos depende de la solubilidad diferencial de la amilosa y amilopectina en una mezcla de agua:butanol, mientras que el otro proceso está basado en el uso de la lectina Concanavalina A. Estos métodos fueron complementados mediante determinaciones espectrofotométricas que facilitaron la identificación de los á-D-glucanos y también permitieron mejorar la cuantificación comparativa de las fracciones

  11. Análisis de la competencia entre tres tipos de arroz rojo y la variedad Oryzica -1

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    Montealegre S. Fabio A.

    1991-12-01

    Full Text Available Con el objeto de analizar la capacidad competidora de los arroces rojos Varietal Cica-6 (VC-6, Mechudo Patechulo
    (PM y Pipón Desgranador (PO, se llevó a cabo una investigación de campo en la cual los arroces rojos fueron sembrados en monocultivo yen mezcla (50:50 con la variedad Orvzlca-1, Se empleó un diseño de bloques
    al azar con muestreo y tres replicaciones. Las variables medidas fueron altura de planta, número de macollas y hojas por planta, área foliar, peso seco de la parte aérea y los componentes de rendimiento. Además se calculó el índice de área foliar, la relación de área foliar, la tasa de crecim lehto relativo, la tasa de asimilación neta, la tasa de crecimiento del cultivo y la duración del área foliar. Se encontró un incremento del peso seco y la TCR en el VC6, del peso seco en el MP y del peso seco, área foliar y RAF del PD cuando
    estuvieron en competencia con la variedad Oryzica-1, lo que demuestra que estas son características importantes de los rojos como plantas competidoras. Por otra parte, la
    mayoría de las características de la variedad Oryzica-1 disminuyen significativamente cuando se encuentra en mezcla con los arroces rojos. Estos resultados permiten clasificar
    al PD como altamente agresivo, al MP como medianamente agresivo y al VC6 como ligeramente agresivo.A field experiment was conducted to analyse the competitive ability of three red rice types: Varietal Cica-6 (VC·S, Mechudo Patechulo (MP y Pipón Desgranador (PO grown in monoculture and mixture (50:50 wth Oryzica-1. A randomized block design with sampling and three replications
    was used. Plant heigh, tiller number and leaves per plant, leaf area, plant dry weight and yield components were measured.
    Leaf area index, net assimilation rate, leaf area ratio, relative growth rate, crop growth rate and leaf area duration were
    derived. It was found an increase in plant dry weight and RGR in VC-6, plant dry

  12. Instituciones, innovación y transferencia de conocimiento: contribuciones de los estudios sobre las variedades del capitalismo

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    Pinto, Hugo

    2012-02-01

    Full Text Available This article is an interpretation of the theories about the varieties of capitalism, highlighting their implications for innovation, especially for the processes of knowledge transfer between universities and businesses. Studies of the varieties of capitalism point to the importance of the institutional architecture for the competitiveness of countries. The debate highlights the institutional complementarities as a useful concept in theoretical terms to explain the processes of development and need to anchor institutional analysis on empirical data. These approaches are relevant to frame important theoretical studies on innovation, where knowledge transfer processes are considered one of the essential impetus for innovation. The article provides a critical review of three approaches to varieties of capitalism: the pioneering study of Hall and Soskice, the business systems of Whitley and the approach to governance of Amable and Boyer. Corollaries that can connect to processes of knowledge transfer are extracted for each approach. The conclusions indicate that the focus of attention to the company should be complemented with a systemic approach, to show the wide range of actors, where the university becomes one of the most important. Government intervention is essential in shaping an innovative behaviour of the actors, to encourage and promote the use of different mechanisms of knowledge transfer.

    Este trabajo realiza una interpretación de las teorías sobre las variedades del capitalismo resaltando sus implicaciones para la innovación, en especial para los procesos de transferencia de conocimiento entre la universidad y la empresa. Los estudios de las variedades del capitalismo señalan la importancia de la arquitectura institucional para la competitividad de los países. El debate pone de relieve las complementariedades institucionales como concepto útil en términos teóricos para explicar los procesos de desarrollo, así como

  13. Thyroid cancer - medullary carcinoma

    Science.gov (United States)

    Thyroid - medullary carcinoma; Cancer - thyroid (medullary carcinoma); MTC; Thyroid nodule - medullary ... in children and adults. Unlike other types of thyroid cancer, MTC is less likely to be caused by ...

  14. Desempenho vitícola de variedades autóctones italianas em condição de elevada altitude no Sul do Brasil

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    Alberto Fontanella Brighenti

    2014-06-01

    Full Text Available O objetivo deste trabalho foi avaliar o desempenho vitícola de 12 variedades autóctones italianas cultivadas a 1.400 m de altitude, em São Joaquim, SC. As seguintes variedades foram avaliadas em três ciclos: Prosecco, Verdicchio e Vermentino (brancas; e Aglianico, Aleatico, Ancellotta, Lambrusco Grasparossa, Montepulciano, Negroamaro, Rebo, Sagrantino e Sangiovese (tintas. Utilizou-se o delineamento experimental inteiramente casualizado, com cinco repetições de oito plantas para cada variedade. Os estádios fenológicos analisados foram: brotação, floração, mudança de cor das bagas e maturidade. No momento da colheita, avaliaram-se: produtividade e produção por planta, teor de sólidos solúveis totais (ºBrix, acidez total titulável (meq L-1, pH, e teores de antocianinas e de polifenóis totais. A amplitude térmica em torno de 10°C, durante a maturação, influenciou positivamente a qualidade da uva. As variedades brancas mais bem adaptadas às condições de São Joaquim foram a Vermentino e a Verdicchio, com produtividades acima de 3,9 Mg ha-1, sólidos solúveis acima de 18°Brix e teores de polifenóis totais acima de 500 mg L-1. As variedades tintas mais bem adaptadas foram a Sangiovese, a Sagrantino e a Montepulciano, com produtividades em torno de 6 Mg ha-1, sólidos solúveis entre 19 e 21,5°Brix e teores de polifenóis totais acima de 780 mg L-1. As baixas temperaturas durante a brotação e o volume de precipitação pluvial são os aspectos climáticos mais limitantes ao cultivo das variedades avaliadas, em São Joaquim.

  15. COMPARACIÓN DE LOS COMPONENTES DEL RENDIMIENTO EN VARIEDADES DE FRIJOL EN CONDICIONES DE ACIDEZ Y HUMEDAD RESIDUAL DEL SUELO EN EL SUR DE VERACRUZ

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    Aurelio Morales Rivera

    2015-10-01

    Full Text Available El frijol negro (Phaseolus vulgaris L. se cultiva en suelos ácidos (pH<5 con humedad residual en el sur del estado de Veracruz, México. El cultivo se realiza en unas 6600 ha al final de la temporada de lluvias a mediados de septiembre o principios de octubre. La humedad residual, aunado a la acidez del suelo frecuentemente afectan el periodo de formación de la semilla, reduciendo el rendimiento. El presente trabajo tuvo como objetivo caracterizar variedades de frijol de tipo III en cuanto a su rendimiento de semilla y sus componentes, cultivadas bajo restricciones de humedad residual y acidez del suelo, y altas temperaturas en el ciclo otoño-invierno 2012-2013, en el Municipio de Juan Rodríguez Clara, Veracruz. Se emplearon seis variedades de testa de color negro, seis del tipo ‘Flor de Mayo’ y una del tipo ‘Flor de Junio’. El diseño experimental fue de bloques completos al azar con cuatro repeticiones. La unidad experimental se constituyó de cinco surcos de 5 m de longitud y 0.8 m de separación. Se fertilizó con una dosis de 40-40-00. Las variedades “Negro Veracruz”, “San Andrés”, “Negro Cotaxtla” y “Flor de Junio Marcela”, exhibieron mayor rendimiento de semilla, vainas por m2 y peso de 200 semillas, altura de planta y menor biomasa aérea final que las demás. El mayor rango de variabilidad genética entre las variedades se observó para la biomasa aérea final y altura de planta. La respuesta en rendimiento y sus componentes sugiere que algunas variedades de testa negra han desarrollado mecanismos de tolerancia a la acidez, restricción de humedad residual del suelo y altas temperaturas durante la floración y formación de la semilla, que les permiten producir altos rendimientos a pesar de estar sometidas a estrés ambiental. La variedad de Valles Altos (“Flor de Junio Marcela”, también mostró que podría tener buena adaptación a estas condiciones.

  16. Avaliação de compostos fenólicos em geléia de uva produzida com a variedade IAC-138-22 (máximo)

    OpenAIRE

    Luciula Lemos Lima Morelli

    2011-01-01

    Resumo: O presente trabalho buscou avaliar a presença de compostos fenólicos antioxidantes em geleia de uva produzida com a variedade Máximo (IAC-138-22), por meio de (1) métodos colorimétricos e (2) cromatografia liquida de alta eficiência. Foram produzidas 3 formulações de geleia com a nova variedade e 3 outras com a mistura entre as variedades Niágara Rosada e Isabel, para efeito comparativo. As formulações diferiam em relação à quantidade de casca de uva incorporada à formulação, sendo a ...

  17. Respuesta de variedades de clavel a la inoculacion con Fusarium oxysporum f. Sp. dianthi y Phialophora cinerescens: produccion de fitoalexinas

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    Orozco de Amezquita Martha

    1997-06-01

    Full Text Available

    La resistencia del clavel a Fusarium oxysporum f. sp. dianthi se ha correlacionado con el metabolismo de compuestos fenólicos. Por lo tanto, con el fin de profundizar en el conocimiento de las relaciones que existen entre el patógeno vascular y su hospedante, en este trabajo, se propuso evaluar la producci6n de compuestos feno1icos en cinco variedades de clavel inoculadas con el aislamiento 15 de la raza 2, un aislamiento de la raza 4 y el aislamiento 71 de baja patogeninidad de Fusarium oxysporum f. sp. dianthi y un aislamiento de Phialophora cinerescens. En todas las variedades se presenta acumulación de compuestos fenolicos independientemente de si fueron o no inoculadas con los patógenos. La proporción de estos compuestos y el tipo de ellos fue diferente en los distintos tratamientos. Ya que los perfiles cromatograficos obtenidos en este experimento coinciden con los correspondientes a la muestra enviada por el doctor Schoffelmeer, se puede señalar que los compuestos separados por cromatografía corresponden a dianthialexinas, pero que, los resultados de este trabaje aun no permiten establecer su relación con las respuestas de resistencia.

    Palabras claves: Asistencia, Metabolismo, Compuestos fenólicos, Dianthialexinas.

  18. PROPIEDADES FÍSICO-QUÍMICAS Y PARÁMETROS DE CALIDAD PARA USO INDUSTRIAL DE CUATRO VARIEDADES DE PAPA

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    Jorge Hasbún

    2009-01-01

    Full Text Available Se comparó el contenido de sólidos totales, almidón, azúcares reductores y la gravedad específica de 3 variedades promisorias de papa de reciente introducción en Costa Rica (MNF-41, MNF-72 y MNF-80 y de la tradicional Floresta mediante análisis gravimétricos y espectrofotométricos. El color y la textura en bastones de papa prefrita congelada, como producto terminado, y papa tostada, fueron evaluados instrumentalmente. Para el contenido de grasa se utilizó el método de Soxhlet. La MNF-80 mostró el contenido mayor de sólidos totales y almidón, con 23,1 y 20,8%, respectivamente; y Floresta los contenidos más bajos con 15,9% y 13,4%, respectivamente. Existe una correlación (R2=0,97 del contenido de sólidos totales con la gravedad específica de los materiales. La MNF-80 presentó el porcentaje menor de azúcares reductores con 0,076%; mientras que MNF-41 y MNF-72 presentaron 1,142 y 1,384%, respectivamente. En los bastones de papa prefrita congelada, el porcentaje mayor de grasa se encontró en la MNF-80 y el menor en las MNF-72 y Floresta. No se observó diferencias en el scurecimiento y textura entre variedades. En las papas tostadas la MNF-80 presentó un contenido menor de grasa y de grado de oscurecimiento. Las hojuelas elaboradas a partir de la MNF-72 y la MNF-80 mostraron valores de firmeza mayores. En la absorción de grasa, hubo un comportamiento distinto según el producto elaborado; en los bastones de papa prefrita congelados de la MNF- 72 y Floresta, la absorción de grasa en el producto terminado fue menor, mientras que en las papas tostadas los contenidos de grasa menores se obtuvieron con la MNF-80.

  19. A variedade da dieta é fator protetor para a pressão arterial sistólica elevada

    Directory of Open Access Journals (Sweden)

    Erick Prado de Oliveira

    2012-04-01

    Full Text Available FUNDAMENTO: A dieta influencia diretamente a hipertensão arterial (HAS, que é um dos principais fatores de risco da doença cardiovascular. OBJETIVO: Associar a HAS com fatores dietéticos de adultos clinicamente selecionados para programa de mudança de estilo de vida. MÉTODOS: Estudo transversal composto por 335 indivíduos, com idade entre 44 e 65 anos, clinicamente selecionados para um programa de mudança de estilo de vida. Foram avaliados os dados antropométricos (IMC, % de gordura e circunferência abdominal, os componentes bioquímicos (concentrações plasmáticas de glicose, triglicerídeos, colesterol total, HDL-c e LDL-c e a dieta, por meio do recordatório de 24 horas. A qualidade da dieta foi avaliada pelo Índice de Alimentação Saudável. A pressão arterial foi mensurada de acordo com a V Diretriz Brasileira de Hipertensão Arterial e classificada de acordo com o NCEP-ATPIII. A regressão logística foi realizada para determinar a probabilidade de alterações na PAS e PAD de acordo com a ingestão dietética. Adotou-se como significante o valor de p < 0,05. RESULTADOS: Observou-se correlação positiva da pressão arterial diastólica com o consumo de colesterol e açúcar; e negativa com a ingestão de fibras, porções de óleo e qualidade da dieta. A variedade da dieta ≥ 8 itens alimentares apresentou efeito protetor para alterações da pressão arterial sistólica; OR = 0,361 (0,148-0,878. CONCLUSÃO: A maior variedade da dieta ofereceu efeito protetor para alteração da pressão arterial sistólica.

  20. INFLUENCE OF HEPATOCELLULAR CARCINOMA ETIOLOGY IN THE SURVIVAL AFTER RESECTION.

    Science.gov (United States)

    Lopes, Felipe de Lucena Moreira; Coelho, Fabricio Ferreira; Kruger, Jaime Arthur Pirolla; Fonseca, Gilton Marques; Araujo, Raphael Leonardo Cunha de; Jeismann, Vagner Birk; Herman, Paulo

    2016-01-01

    Hepatocellular carcinoma (HCC) is the most frequent type of primary liver cancer and its incidence is increasing around the world in the last decades, making it the third cause of death by cancer in the world. Hepatic resection is one of the most effective treatments for HCC with five-year survival rates from 50-70%, especially for patients with a single nodule and preserved liver function. Some studies have shown a worse prognosis for HCC patients whose etiology is viral. That brings us to the question about the existence of a difference between the various causes of HCC and its prognosis. To compare the prognosis (overall and disease-free survival at five years) of patients undergoing hepatectomy for the treatment of HCC with respect to various causes of liver disease. Was performed a review of medical records of patients undergoing hepatectomy between 2000 and 2014 for the treatment of HCC. They were divided into groups according to the cause of liver disease, followed by overall and disease-free survival analysis for comparison. There was no statistically significant difference in the outcomes of the groups of patients divided according to the etiology of HCC. Overall and disease-free survival at five years of the patients in this sample were 49.9% and 40.7%, respectively. From the data of this sample, was verified that there was no prognostic differences among the groups of HCC patients of the various etiologies. O carcinoma hepatocelular (CHC) é o mais frequente tipo de câncer primário do fígado e a sua incidência vem aumentando nas últimas décadas, tornando-o hoje a terceira causa de morte por câncer no mundo. A ressecção hepática é um dos tratamentos mais eficazes para ele com taxas de sobrevida em cinco anos de 50-70%, especialmente para pacientes com nódulo único e função hepática preservada. Alguns estudos mostraram pior prognóstico para os pacientes com CHC cuja causa é a infecção por vírus B ou C. Isso leva à questão sobre a

  1. Caracterización física del fruto en variedades de plátano cultivadas en la zona cafetera de colombia

    OpenAIRE

    Castellanos Galeano, Francisco Javier; Lucas Aguirre, Juan Carlos

    2012-01-01

    Se analizaron el peso, la longitud, el diámetro central y la densidad de frutos con cáscara y sin ella, y la materia seca (MS) de las variedades de plátano del grupo Plantain (AAB): África, Dominico Hartón, Cubano Blanco y Hartón, además las del grupo Bluggoe (ABB): Cachaco o Popocho, y los híbridos (AAAB): FHIA 20 y FHIA 21 repetidas dos veces, con excepción del hibrido FHIA 21 que tenía una repetición. Las variedades Cachaco, Cubano Blanco y Hartón se cosecharon en el área rural de los muni...

  2. Rendimiento de dos variedades mejoradas de frijol, sembrados al voleo y al espeque, en Moss Pam, Waspam, rio Coco

    Directory of Open Access Journals (Sweden)

    Sankara Narvaez Ismael

    2012-10-01

    Full Text Available           Este articulo presenta el comportamiento agronómico del frijol (Phaseolus vulgaris L. en dos variedades:(DOR-364 y H-46, establecidos a través del análisis de dos métodos de siembra (al voleo y al espeque,  para medir la variable rendimiento. El experimento se realizó en la finca académica SNAKY/URACCAN, ubicada en la comunidad Moss Pam, en el municipio de Waspam río Coco, Región Autónoma Atlántico Norte (RAAN. El cultivo de frijol es de gran relevancia en la vida de las comunidades indígenas, ya que constituye al igual que el arroz, el grano de mayor importancia en la dieta familiar. Es de mencionar que las comunidades indígenas de la RAAN utilizan básicamente dos métodos de siembra (al voleo y al espeque; no obstante, siempre los rendimientos son bajos, por lo que se hace necesario el estudio con las condiciones descritas.    Se utilizó un diseño bifactorial en bloques completos al azar, en donde el factor A: equivale a las dos variedades de frijol (DOR-364 y H-46, y el factor B: dos métodos de siembra (al voleo y al espeque. La evaluación se hizo sobre las características morfométricas presentadas en la fase vegetativa y reproductiva del cultivo. El procesamiento de la información se hizo con el programa estadístico InfoStat, indagando desde el análisis del ANAVA y la prueba Kruskal-Wallis. Los resultados mostraron una alta viabilidad germinativa (95%, con diferencias estadísticas entre tratamientos en las variables altura y diámetro en la etapa vegetativa. En la etapa reproductiva las variables: número de vainas/plantas y granos/vainas/plantas, fueron las que presentaron diferencias estadísticas entre tratamientos, contrario a las variables número de flores/plantas y longitud de vainas/plantas que no mostraron diferencias. Finalmente el ANAVA con un 95 por ciento de confiabilidad encontró diferencias de medias en la variable rendimiento.Se recomienda el establecimiento de la variedad H-46

  3. Poorly Differentiated Thyroid Carcinoma.

    Science.gov (United States)

    Setia, Namrata; Barletta, Justine A

    2014-12-01

    Poorly differentiated thyroid carcinoma (PDTC) has been recognized for the past 30 years as an entity showing intermediate differentiation and clinical behavior between well-differentiated thyroid carcinomas (ie, papillary thyroid carcinoma and follicular thyroid carcinoma) and anaplastic thyroid carcinoma; however, there has been considerable controversy around the definition of PDTC. In this review, the evolution in the definition of PDTC, current diagnostic criteria, differential diagnoses, potentially helpful immunohistochemical studies, and molecular alterations are discussed with the aim of highlighting where the diagnosis of PDTC currently stands. Published by Elsevier Inc.

  4. Eficiência no uso de fósforo de variedades de arroz cultivadas em solos de várzea irrigada

    Directory of Open Access Journals (Sweden)

    Eliane Aparecida Rotili

    2010-06-01

    Full Text Available A cultura do arroz destaca-se como uma das mais importantes do mundo, por apresentar facilidade de adaptação a condições edafoclimáticas distintas. Cultivado e consumido em todos continentes, o arroz destaca-se pela produção e área de cultivo, desempenhando papel estratégico tanto em nível econômico quanto social. No Brasil, a maior parcela da produção de arroz é proveniente do ecossistema de várzea. Este trabalho objetivou estudar a eficiência e resposta ao uso de fósforo de variedades de arroz (Oryza sativa L., em várzea irrigada, no Sudoeste do Estado de Tocantins. Os tratamentos envolveram oito variedades comerciais de arroz (BRS-Jaçanã, Best-2000, BRS-Guará, BRS-Alvorada, BRA-01381, AN-Cambará, BRS 7-Taim e EPAGRI-109, que foram cultivadas em dois ambientes distintos. Para simular ambientes com baixo e alto níveis de fósforo, foram utilizadas as doses de 20 e 120 kg ha-1 de P2O5, respectivamente. O delineamento experimental utilizado foi o de blocos casualizados, com quatro repetições. Por meio da produtividade de grãos, as variedades foram classificadas quanto à eficiência no uso e resposta à aplicação de fósforo. Demonstrou-se que apenas a variedade BRS-Alvorada é eficiente quanto ao uso de fósforo e responsiva a sua aplicação.

  5. Comportamento de variedades de alface na região de Campinas - Parte II Behavior of lettuce varieties in the Campinas area

    Directory of Open Access Journals (Sweden)

    José Botter Bernardi

    1969-01-01

    Full Text Available São apresentados os resultados de um ensaio de variedades de alface de cabeça. A variedade "Great Lakes'", do tipo de cabeça com fôlhas crêspas e verdes, mostrou-se mais produtiva e de melhor fechamento das cabeças. As variedades de fôlhas lisas situaram-se em segundo plano. Destas destacaram-se: "Shimabukuro", "Piracicaba" e "Gigante". As variedades menos produtivas foram "Maravilla de Ias Cuatro Estaciones" e "White Boston".The authors present the results of a trial of lettuce varieties, nearly all of them belonging to the butter-head type. In addition to productivity and quality of product, the trial was performed with a view to verify the behavior of the varieties under high-temperature conditions prevailing from September to November, this being the end of the period of cultivating, acceptable in conditions as of the Paulista Plateau. The variety "Great Lakes", of the crisp-head type, excelled the others in productivity and formation of heads. The following varieties placed themselves second in order: "Shimabukuro", "Piracicaba", "Gigante", "Bautzener Dauerkopf" and "La Chaume", all of them of the butter-head type. The less productive varieties, also of the same type as the before mentioned, were: "Maravilla de las Cuatro Estaciones" and "White Boston", the former presents, however, the external leaves consistent and of brownish tint, this causing depreciation of its commercial value. Of all varieties, the "White Boston'' is the most tender one and is mostly given preference by the Paulista consumer.

  6. Revelando el origen de la variedad de vid ‘Bonarda’ cultivada en Argentina a través del empleo de marcadores moleculares microsatélites

    OpenAIRE

    De Rosas, María Inés; Martínez, Liliana

    2009-01-01

    ‘Bonarda’ es una variedad de vid que en Argentina se cultiva principalmente en las provincias de Mendoza y San Juan, representa el segundo cepaje tinto en superficie nacional cultivada y es considerada con gran potencial para la elaboración de vinos tintos de alta calidad. Existe incertidumbre respecto a su origen en el país. La descripción ampelográfica de la ‘Bonarda’ cultivada en Argentina remarca gra...

  7. Efecto de los niveles de fertilización, la variedad y la época en los contenidos de saponinas esteroidales en morera(Morus alba L.

    Directory of Open Access Journals (Sweden)

    D. E. García

    2005-01-01

    Full Text Available Con el objetivo de determinar el efecto de la fertilización orgánica (0, 100, 300 y 500 kg N/ha/año, la variedad (Cubana, Indonesia, Tigreada y Acorazonada y la época (periodo lluvioso y poco lluvioso en el contenido total de saponinas esteroidales (SE de la fracción comestible de la morera, se llevó a cabo una investigación con un diseño de bloques al azar con arreglo factorial 4 x 4 x 2 (n=5. No se observaron interacciones significativas de ningún orden entre los factores en estudio (P<0,05 y, tanto en las hojas como en los tallos tiernos, los niveles de abonado no afectaron significativamente las concentraciones. La variedad Acorazonada presentó el máximo contenido de SE en las hojas (11,57a mg/gMS, mientras que la Indonesia, Cubana y Tigreada mostraron niveles más bajos (11,00ab; 10,65b y 9,30c mg/gMS, respectivamente. En los tallos tiernos no se observaron diferencias significativas entre las variedades. La mayor concentración de SE (en las hojas se observó en el periodo lluvioso (14,38 mg/gMS, mientras que en los tallos tiernos el nivel más elevado correspondió con el periodo poco lluvioso (2,52 mg/gMS. Los resultados permiten concluir que, entre los factores evaluados en las hojas, la época y la variedad, mostraron la mayor importancia. En los tallos tiernos sólo la época ocasionó variaciones marcadas. En ambas partes de la planta, los niveles de fertilización no produjeron efecto en las concentraciones de las SE.

  8. Respuesta de variedades de maíz (Zea mays L. a diferentes fuentes de fertilización en el Valle de Puebla

    Directory of Open Access Journals (Sweden)

    Rafael Alvarado Teyssier

    2018-01-01

    Full Text Available Actualmente existen opciones biológicamente sustentables que pueden sustituir parcialmente la fertilización sintética de los cultivos, disminuyendo los costos de producción. Para evaluar la respuesta de 18 variedades de maíz a la fertilización sintética (FQ, fertilización sintética más inoculante (FQB y fertilización sintética más composta (FQC, en 2010 se establecieron dos experimentos en condiciones de temporal en el valle de Puebla, bajo un diseño completamente al azar con arreglo en parcelas divididas con tres repeticiones, a las parcelas grandes se les asignó el tipo de fertilización y en las parcelas chicas se integraron los genotipos de maíz. No se encontraron diferencias en rendimiento de grano y rastrojo por tipo de fertilización. Los resultados mostraron interacción de las variedades con los tipos de fertilización y localidad. En la interacción variedad por tipo de fertilización se encontró que el 55.6% de las variedades mostró mayores rendimientos con FQC, mientras que el 27.8% con FQB y el 16.7% con FQ. En San Andrés Calpan se obtuvieron los mayores rendimientos de rastrojo con FQC (8.8 Mg ha 1 mientras que en San Pedro Tlaltenango estos se obtuvieron con la FQB (15.3 Mg ha 1 y FQ (15.4 Mg ha 1. El empleo combinado de fertilizante sintético con inoculantes o composta mantiene e incrementa los rendimientos de grano y rastrojo al obtenido sólo con la fertilización sintética.

  9. Basal cell carcinoma of the skin with areas of squamous cell carcinoma: a basosquamous cell carcinoma?

    OpenAIRE

    de Faria, J

    1985-01-01

    The diagnosis of basosquamous cell carcinoma is controversial. A review of cases of basal cell carcinoma showed 23 cases that had conspicuous areas of squamous cell carcinoma. This was distinguished from squamous differentiation and keratotic basal cell carcinoma by a comparative study of 40 cases of compact lobular and 40 cases of keratotic basal cell carcinoma. Areas of intermediate tumour differentiation between basal cell and squamous cell carcinoma were found. Basal cell carcinomas with ...

  10. Synchronous gastric neuroendocrine carcinoma and hepatocellular carcinoma

    DEFF Research Database (Denmark)

    Ewertsen, Caroline; Henriksen, Birthe Merete; Hansen, Carsten Palnæs

    2009-01-01

    of synchronous gastric NEC and hepatocellular carcinoma in a patient with several other precancerous lesions is presented. The patient had anaemia, and a gastric tumour and two duodenal polyps were identified on upper endoscopy. A CT scan of the abdomen revealed several lesions in the liver. The lesions were...... invisible on B-mode sonography and real-time sonography fused with CT was used to identify and biopsy one of the lesions. Histology showed hepatocellular carcinoma. A literature search showed that only one case of a hepatocellular carcinoma synchronous with a gastric NEC has been reported previously. TRIAL...

  11. Influencia del proceso de maduración del fruto en la calidad sensorial de aceites de oliva virgen de las variedades Picual, Hojiblanca y Picudo

    Directory of Open Access Journals (Sweden)

    Jiménez Herrera, B.

    2012-10-01

    Full Text Available The sensory quality of virgin olive oil is closely correlated with the cultivar and the degree of ripening of the olive fruit. The aim of the present work was to investigate the influence of ripening degree on sensory profile of monovarietal virgin olive oils (VOO in order to establish an optimum harvesting time. Fruit obtained from three different cultivars, Picual, Picudo and Hojiblanca were picked at nine different stages of ripeness. The quality parameters were evaluated and the sensory characteristics were determinate by a sensor panel. The analytical parameters decrease slightly in all cultivars. The evolution of the organoleptic characteristics of the virgin olive oil is reported and typical flavors are described for each cultivar. In all studied cultivar, “fruity” and “bitter” attributes decreased during the ripening and conversely “sweet” attribute increased. The results showed in this work could be considered useful for providing information about the evolution of sensory quality of virgin olive oils during ripening to obtain those based on market preferences.

    La calidad sensorial del aceite de oliva virgen (AOV está estrechamente relacionada con la variedad y el grado de maduración de la aceituna. El objetivo del presente trabajo fue investigar la influencia del grado de maduración sobre el perfil sensorial de aceites de oliva virgen monovarietales con el fin de establecer el momento óptimo de recolección. Los frutos de tres variedades diferentes, Picual, Picudo y Hojiblanca fueron recolectados en nueve etapas de maduración diferentes. Los parámetros de calidad fueron evaluados y las características organolépticas se determinaron por un panel de cata. Los resultados muestran que los parámetros analíticos disminuyeron ligeramente en todas las variedades. Para cada variedad se describe la evolución de las características organolépticas de los aceites de oliva virgen así como sus flavores típicos. En

  12. Comportamiento fenológico de tres variedades de rosas rojas en función de la acumulación de la temperatura

    Directory of Open Access Journals (Sweden)

    Rodríguez Wbeymar E.

    2006-12-01

    Full Text Available

    Un modelo fenológico permite predecir  el tiempo en que ocurrirá un evento en el desarrollo de un organismo, y el calor acumulado en este proceso se conoce como tiempo fisiológico o grados-día de crecimiento.  El estudio fue realizado en una finca de producción de flores, ubicada en el municipio de Suesca (Cundinamarca, con el objetivo de evaluar el comportamiento fenológico de las variedades de rosas ‘Madame Delbard’, ‘Charlotte’ y ‘Freedom’, como respuesta a la acumulación de grados-día. Para esto, a los estadios fenológicos denominados ‘arroz’, ‘garbanzo’, ‘mostrando color’ y ‘cosecha’ se les hizo un seguimiento desde el momento de la poda. Para la primera cosecha de la variedad ‘Madame Delbard’, se obtuvo una acumulación total de 1085,3 grados-día y el pico de cosecha se presentó a los 86 d y 904,4 grados-día. La variedad ‘Charlotte’ tuvo sus primeras flores a los 49 d, finalizando la cosecha a los 87 d y con 906,3 grados- día. El pico de cosecha se dio a los 69 d y 718,5 grados-día. En el caso de la variedad ‘Freedom’, se necesitaron 50 d después de poda para cortar las primeras flores, a los 80 d y 779,9 grados-día se acentúo la cosecha, finalizando a los 93 d y 892,9 grados-día. Las curvas de producción obtenidas de las tres variedades presentaron un modelo cuadrático, definido por el modelo de regresión de Poisson, excepto para la curva de la ‘Freedom’, que se comportó como un modelo lineal.

  13. Composición química de aceites de las variedades Arbequina y Empeltre cultivadas en regadío

    Directory of Open Access Journals (Sweden)

    Guillén, Mónica

    2009-09-01

    Full Text Available This study examines the composition of oils extracted from young olive trees of the Arbequina and Empeltre varieties grown with irrigation in the same farm throughout a period of three seasons. Quality parameters, Fatty acid composition, sterols, waxes and aliphatic alcohols were analyzed. Although the quality of oils of both varieties was that of extra virgin, varietal differences were found. The peroxide value and the content of total polyphenols were much higher in Empeltre, whereas stability was higher in Arbequina. The monounsaturated acids were higher in Arbequina containing more stearic, oleic, arachidic and behenic acids than Empeltre, while this variety surpassed Arbequina in palmitic, margaroleic, linoleic, linolenic, gadoleic and lignoceric acids. The sterol composition was also different in the two varieties with higher contents of 24-methylencholesterol, campesterol and, especially, Δ-5 avenasterol in Arbequina, and campestanol, Δ-7 stigmastenol, Δ-7 Avenasterol in Empeltre. The contents of both waxes and aliphatic alcohols were higher in Arbequina.Este trabajo analiza la composición de aceites de árboles jóvenes de las variedades Arbequina y Empeltre cultivados en regadío en una misma finca. Durante tres campañas se estudiaron los parámetros de calidad, la composición en ácidos grasos, los esteroles, las ceras y los alcoholes alifáticos. Aunque la calidad de los aceites de las dos variedades fue la de virgen extra se encontraron diferencias varietales. El índice de peróxidos y los polifenoles totales tuvieron valores muy superiores en la variedad Empeltre, sin embargo la estabilidad fue mayor en Arbequina. El total de ácidos monoinsaturados fue mayor en Arbequina y el de poliinsaturados en Empeltre. Arbequina contenía más esteárico, oleico, araquídico y behénico que Empeltre, en tanto que en esta variedad era mayor en palmítico, margaroleico, linoleico, linolénico, gadoleico y lignocérico. La composici

  14. Elaboración de galletas a base de harina de papa de la variedad Parda Pastusa (Solanum tuberosum L.

    Directory of Open Access Journals (Sweden)

    Andrés Felipe Cerón Cardenas

    2014-04-01

    Full Text Available La papa (Solanum tuberosum se considera el cuarto cultivo más importante en el mundo y su consumo ha pasado de producto fresco a producto laborado en forma industrial. En el estudio se determinó el nivel máximo de sustitución de la harina de trigo por harina de papa de la variedad Parda Pastusa en la elaboración de galletas fermentadas dulces. Se utilizó un diseño completamente al azar, donde el factor de estudio fueron el nivel de sustitución, 0%, 30%, 40% y 50%, y las variables de respuesta: sensoriales (color, sabor, textura y aceptabilidad y químicas proximales (materia seca, proteína, ceniza y grasa. No se encontraron diferencias (P < 0.05 en color, textura y aceptación; mientras para la variable sabor fue diferente en los niveles 0% y 30% de sustitución. Para los niveles de sustitución se encontraron, respectivamente, reducciones en contenido de proteína en 7.42%, 17.40% y 23.62%, y de grasa en 25.65%, 42.59% y 55.87%; mientras que la materia seca aumentó 3.83%, 4.95% y 5.62% y el contenido de ceniza en 13.14%, 17.71% y 23.43%, respectivamente. Con la sustitución de 30% se produjeron galletas de buena aceptación mientras que niveles mayores no son recomendables.

  15. Metachronous colorectal carcinoma

    DEFF Research Database (Denmark)

    Bülow, Steffen; Svendsen, L B; Mellemgaard, A

    1990-01-01

    During the period 1943-67, 903 Danish patients aged less than 40 years had colorectal carcinoma. The patients were followed up for up to 41 years and during this period 44 of 501 (9 per cent) operated on for cure developed a metachronous colorectal carcinoma. The cumulative risk of a metachronous...... colorectal carcinoma was 30 per cent after up to 41 years of observation. The occurrence of a metachronous colorectal carcinoma was evenly distributed in the observation period. The cumulative survival rate after operation for a metachronous colorectal carcinoma was 41 per cent after 20 years of observation....... We propose a lifelong follow-up programme after resection of colorectal carcinoma for cure in this age group, including annual Hemoccult test and colonoscopy at 3-year intervals....

  16. Using the marker CD34 as tool to discriminate adenoma versus hepatocellular; Uso del marcador de CD34 como herramienta para discriminar adenoma versus hepatocarcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Mohs Alfaro, Monica

    2011-07-01

    The CD34 marker is used as immunohistochemistry technique to detect and differentiate between the hepatocellular adenoma of the hepatocellular carcinoma. The liver lesions are described. The hepatic angiogenesis is explained [Spanish] El marcador CD34 es usado como tecnica de inmunohistoquimica para detectar y diferenciar entre el adenoma hepatocelular del carcinoma hepatocelular. La lesiones en el higado son descritas. La angiogenesis hepatica es explicada.

  17. Actividad de la fitasa y comparación en la composición química, contenido de ácido fítico en cuatro variedades de quinua (Chenopodium quinoa Willd.

    Directory of Open Access Journals (Sweden)

    Olga Rosero

    2013-01-01

    Full Text Available Quinua (Chenopodium quinoa Willd. es una planta que ha sido cultivada en las regiones andinas de Bolivia, Perú, Ecuador y Colombia. Su importancia se debe al alto contenido de proteínas y de aminoácidos esenciales en su grano. El objetivo principal en la investigación fue encontrar la relación entre el ácido fítico y la actividad de la fítasa en las variedades de quinua Nariño procedente de Colombia (QC, quinua Anapquis (QBA y quinua -IICA 020 Oruro (QB procedentes de Bolivia, y quinua Huancavelica de Perú (QP. Se encontraron diferencias significativas en las proporciones de proteína, grasa, fibra y ceniza entre las cuatro variedades. El análisis de los aminoácidos esenciales mostró que las variedades de quinua tienen altas concentraciones de arginina, leucina, fenilalanina y lisina, y tirosina como aminoácidos semi-esenciales. La fracción de grasa presentó concentraciones altas de ácido oleico, linoleico, a-linolénico y ácido palmítico. Las variedades presentaron altos contenidos de P y Ca. El ácido fítico en QC (19.64% fue significativamente más bajo que en las otras variedades. En la variedad QC (1052 FTU/kg se encontraron altas proporciones de actividad de la fítasa. Se encontró relación significativa y negativa (r = -0.89 entre la actividad de la fítasa y el ácido fítico en todas las variedades.

  18. Resistência de variedades comerciais de cana-de-açúcar ao agente causal do raquitismo-da-soqueira Resistance of sugarcane commercials cultivars to causal agent of ratoon stunting disease

    Directory of Open Access Journals (Sweden)

    Paulo Roberto Gagliardi

    2009-07-01

    Full Text Available O raquitismo-da-soqueira (RSD, causado pela bactéria Leifsonia xyli subsp. xyli, é uma das mais importantes doenças da cana-de-açúcar nas regiões produtoras do mundo. O presente trabalho teve como objetivo avaliar o grau de resistência de 10 variedades comerciais RB de cana-de-açúcar mais a variedade CB 49-260, a qual foi incluída como padrão suscetível. O trabalho visou avaliar os danos amostrados em campo pelo peso das parcelas em função da relação entre a produtividade de parcelas inoculadas e não inoculadas artificialmente com a bactéria. Os resultados mostraram que as variedades RB 72 454, RB 83 5486, RB 86 7515, RB 92 5211, RB 92 5268, RB 92 5345, RB 92 8064 e a variedade padrão CB 49-260 comportaram-se como variedades suscetíveis. A variedade RB 85 5156 comportou-se como de resistência intermediária e apenas as variedades RB 85 5453 e RB 85 5536 comportaram-se como tolerantes.Ratoon stunting disease (RSD caused by bacteria Leifsonia xyli subsp. xyli is one of the most economically important disease of sugarcane worldwide. The present survey had objective to evaluate the resistance of 10 RB commercial cultivars of sugarcane including CB 49-260 as a susceptible standard. The study evaluated the correlating the damages presented for overhauls productivity of inoculate and non inoculate parcels with the bacteria. The results showed that varieties RB 72 454, RB 83 5486, RB 86 7515, RB 92 8064, RB 92 5211, RB 92 5345 and RB 92 5268 were susceptible. RB 85 5156 had a intermediary resistance and varieties RB 85 5453 and RB 85 5536 both showed tolerant behavior.

  19. Influencia de la variedad, portainjerto y época de cosecha en la calidad e índices de madurez en pimiento morrón

    Directory of Open Access Journals (Sweden)

    Alejandro Palacio Márquez

    2017-01-01

    Full Text Available ntroducción: El uso de portainjertos para la producción de hortalizas es una técnica que ha ido en aumento en los últimos años, generando resistencia a patógenos y aumentando la producción en los cultivos. Sin embargo, hoy en día la producción no l o es todo en el rubro comercial; no ba s ta solo con producir en grandes cantidades y en espacios más pequeños; el mercado actual está pidiendo productos de calidad. Por lo que el objetivo del presente trabajo de investigación fue estudiar el efecto de la variedad, el portainjerto y la época de cosecha en la calidad e índices de madurez en pimiento morrón. Método: El presente estudio se llevó a cabo en el ciclo de producción 2012, desarrol lado bajo un sistema de malla sombra, ubicada en Delicias, Chihuahua, México. El diseño experimental usado fue en bloques completos al azar con tres factores estudiados: variedades (Fascinato de frutos rojos y Janette de frutos amarillos, portainjerto (c o n portainjerto Terrano y sin portainjerto y tiempo de cosecha (11 de julio, 8 de agosto, 20 de agosto y 4 de septiembre. Las variables ev a luadas fueron: índices de madurez y parámetros de calidad en pimiento morrón. Resultados: Se encontraron diferencias significativas en los parámetros de calidad e índices de madurez entre las variedades evaluadas, así mismo, el efecto del portainjerto Terrano en la cal i dad del fruto de las variedades Fascinato y Janette incrementó el tamaño de fruto (diámetro, lo n gitud y peso; mientras que, en variables como firmeza, sólidos solubles totales, color (L, C, °h y acidez titulable (% de ácido málico el portainjerto causó un decremento. Por otra parte, la época de cosecha para las variedades estudiadas fue estrechamente re lacionada con el grado de madurez del fruto. Conclusión: El factor variedad influyó en los parámetros: diámetro, longitud, peso del fruto, fi r meza, sólidos solubles totales, color y acidez; mientras que el factor

  20. DENSIDAD CRÍTICA DE Meloidogyne exigua EN PLANTAS DE ALMÁCIGO DE CAFÉ VARIEDAD CATURRA

    Directory of Open Access Journals (Sweden)

    Mainor Rojas

    2013-01-01

    Full Text Available El objetivo del estudio fue evaluar el efecto de densidad creciente de Meloidogyne exigua sobre el desarrollo de plantas de almácigo. Se trasplantaron plántulas de café variedad caturra a bolsas de polietileno con 1335 cm3 de sustrato desinfectado, para establecer un ensayo con diseño de bloques completos al azar, con 8 repeticiones. Los tratamientos aplicados consistieron de poblaciones iniciales (Pi de 0; 0,125; 0,25; 0,5; 1; 2; 4; 8; 16; 32 y 64 huevos+J2/ cm3 de sustrato, aplicadas un mes después del trasplante. El modelo y=m+(1-m ZP-T aplicado 234 días después del trasplante para la altura, diámetro, número de nudos y peso fresco aéreo, indicó que el límite de tolerancia (T fue de 0,66; 0,06; 0,13 y 0,88 huevos+J2/cm3, respectivamente; la producción mínima relativa (m fue de 0,79; 0,79; 0,33 y 0,54 respectivamente, a Pi iguales o mayores a 64 huevos+J2/cm3. El índice de agallas alcanzó el máximo a partir de una Pi de 2; el pico máximo de nematodos en el suelo y las raíces se alcanzó con Pi entre 2 y 4; mientras la tasa máxima de reproducción fue de 114 con Pi de 0,125. Se concluyó que la densidad crítica fue cercana a cero huevos/cm3 de sustrato como población inicial, y que el almácigo se debe desarrollar libre de nematodos, ya que aún con Pi bajas se puede alcanzar la máxima población en corto tiempo.

  1. Caracterización de algunos rasgos vegetativos y reproductivos en variedades de aguacate, Persea americana Mill.

    Directory of Open Access Journals (Sweden)

    Escandón Gil Gonzalo

    1989-12-01

    Full Text Available En Palmira (Colombia entre 1984 y 1988 se caracterizó la colección de aguacate, Persia americana Mili. Se halló la ecuación de regresión AF = 89.25 + 0.60 (La -144, R2= 98.58 %, que permite estimar el área foliar (AF con el producto largo por ancho de las hojas (A. Las variedades Mayapan, Oriente 1, Oriente 3, Simonds y los materiales 2, 3, 4, 5 y 6 presentaron épocas de floración definidas, Trinidad y Material 2 presentaron floraciones bajas pero continuas. El porcentaje de flores que llegó a frutos osciló entre 0.03 % para Oriente 3 y 0.57 % para Trinidad. La mayor pérdida de estructuras reproductivas ocurrió en los primeros días de floración. El modelo logístico no describió correctamente el desarrollo de los frutos, por esto se utilizó el modelo de línea recta por fases. Los materiales 2 y 5 presentaron 105mayores pesos de frutos (621 y 626 g; el de menor peso fue Booth 8. La pérdida de peso del fruto durante la maduración fluctuó entre 3.5 Y 12.8 % para el material 2 y Oriente 3 respectivamente. Los materiales de mayor aceptación por la presentación del fruto y sabor fueron los materiales 1, 2 y 5.A collection of avocado, Persea americana Mill, was characterized in Palmira (Colombia between1984 and 1988. It was found that regretion equation AF = 89.25 + 0.60 (LA-144, R2 = 98.58 %, allows to estimate the foliar area with the product length x width of the leaves. The Mayapan, Oriente 1, Oriente 3, Simmonds and Materia.1 2,3,4,5,6, varieties showed defined blooming time, Trinidad and Material 2 showed low and continue blooming times. The percentajes of flowers that matured in fruit fluctuated between 0.03 % of Oriente 3 and 0.57 % for Trinidad. The greater loss proportion of reproductive structures occurred during the first days of flowering. The logistic model did not describe the right developments of fruits, that is why a straight line model by stages was used. Material 2 and 5 showed the greatest fruit weights during

  2. Determinação do poder germinativo de sementes de variedades paulistas de algodoeiro (Gossypium hirsutum L. Studies on germination of cotton seeds

    Directory of Open Access Journals (Sweden)

    Eduardo Zink

    1969-01-01

    Full Text Available São relatados os resultados das determinações do poder germinativo de sementes de sete variedades paulistas de algodoeiro, provenientes de ensaios de competição de variedades instalados nos Estados de São Paulo e Paraná, no ano agrícola de 1966/67. Os testes de germinação foram efetuados simultaneamente no Laboratório de Sementes, do Instituto Agronômico do Estado de São Paulo, e no Laboratório Central, da Divisão de Sementes e Mudas, da Secretaria da Agricultura do Estado de São Paulo. Com referência a plântulas normais e plântulas anormais B (infetadas verificaram-se, conforme o caso, diferenças significativas entre localidades, entre variedades, entre laboratórios e entre substratos, bem como diversas interações envolvendo as variáveis mencionadas.Seeds of seven varieties of cotton produced at different regions of the States of São Paulo and Paraná (Brazil were submitted to germination tests at two laboratories: Instituto Agronômico de Campinas (IAC at 20 - 30°C and Divisão de Sementes e Mudas (DSM at 30°C. The substrata used for the tests were cotton towels desinfected differently at each laboratory. The statistical analysis for numbers of normal and abnormal plants (infected showed significant differences between regions, varieties, laboratories and substrata. Several significant interactions including these variables were also detected.

  3. Producción y calidad de forraje de variedades de avena en condiciones de temporal en Zacatecas, México

    Directory of Open Access Journals (Sweden)

    Ricardo A. Sánchez Gutiérrez

    2014-01-01

    Full Text Available Se evaluó la pro ducción, calidad y componentes de rendimiento de seis variedades de avena forrajera en Zacatecas. Los experimentos se establecieron en julio de 2011 y 2012 en el municipio de Monte Escobedo. El dise ño experimental fue bloques completos al azar con tres repeticiones, la densidad de siembra fue 120 kg ha -1 y dosis de fertilización de 60-40-00 de N, P 2 O 5 , K. La cosecha fue en estado fisiológico lechoso-masoso. En 2011 y 2012, La variedad Saía sobresalió ( P 0.05 entre variedades con un rango de 10.6 a 13.8 %. En los dos años de estudio Karma presentó las mejores características nutricionales: baja acumulación de fibra detergente neutr o (51 % y acida (33.4 y 35.3 %, valores altos en total de nutrientes digestibles (54 y 58 %, digestibilidad de la materia seca (60 y 62 %, valor relativo del forraje (110 y 113 y energía neta para lactación (1.4 y 1.34 Mcal/kg; P <0.05. Las variables asociadas de manera positiva con forraje seco fueron altura de planta (r=0.701, días a co secha (r=0.685 y proporción de tallo (r=0.629, y negativamente con proporción de espiga (r=-0.629. En calidad nut ricional Karma tuvo mejor valor forrajero. Saia es una buena alternativa para incrementar el rendimiento de forraje por hectárea.

  4. Carcinoma of the pancreas

    International Nuclear Information System (INIS)

    Humphrey, L.J.; Hartman, G.V.

    1974-01-01

    Experience with 17 patients with incurable carcinoma of the pancreas treated by radiation therapy and immunotherapy is described. Results observed have prompted a program of aggressive surgery, radiation therapy, immunotherapy, and long-term chemotherapy. Optimism for significant palliation and survival for these patients with curable and incurable pancreatic carcinoma is warranted. (U.S.)

  5. Synchronous, bilateral tonsillar carcinomas

    DEFF Research Database (Denmark)

    Nami Saber, Camelia; Grønhøj, Christian; Jensen, David Hebbelstrup

    2017-01-01

    INTRODUCTION: The incidence of oropharyngeal squamous cell carcinoma (OPSCC) is increasing, but data on the incidence of synchronous, bilateral tonsillar squamous cell carcinomas (BiTSCCs) is sparse. In this study, we report the incidence and tumour characteristics of BiTSCCs in a population-base...

  6. Empleo del método de secado convectivo combinado para la deshidratación de papaya (Carica papaya L.), variedad Maradol roja

    OpenAIRE

    Sahylin Muñiz Becerá; Antihus Hernández Gómez; Annia García Pereira; Lilia Méndez Lagunas

    2013-01-01

    La presente investigación tiene como objetivo evaluar el método de secado convectivo de papaya (Carica papaya L.) variedad Maradol roja, combinado con la aplicación de pretratamientos de osmosis (DOSC) y escaldado simple (ESSC), mediante el efecto de los factores tecnológi- cos del secador: temperatura (40 y 60oC) y velocidad del flujo de aire (2,5 y 1,5 m/s) sobre el comportamiento de las propiedades de calidad de la fruta deshidratada y la cinética del proceso. El pretratamiento de escaldad...

  7. Evaluación de la susceptibilidad a Macrophomina phaseolina (Tassi Goid en diferentes variedades e híbridos comerciales de sorgo en Sinaloa, México

    Directory of Open Access Journals (Sweden)

    Tomás Moreno Gallegos

    2017-01-01

    Full Text Available El objetivo del presente trabajo fue evaluar la reacción a M. phaseolina de tres variedades experimentales y siete variedades d e polinización libre del INIFAP, así como 14 híbridos comerciales de sorgo, con la finalidad de identificar variedades e híbridos que puedan presentar tolerancia o menor susceptibilidad a esta enfermedad. Los experimentos se establecieron en Culiacán, Sina loa, México, durante los ciclos Primavera - Verano de 2010 y 2011, bajo condiciones de campo en temporal. Se utilizó un diseño de bloques al azar en cada experimento con tres repeticiones y un análisis combinado para los dos ciclos agrícolas. La parcela expe rimental consistió en inocular 10 plantas con mondadientes infectados del hongo. El análisis de varianza detecto diferencias significativas (p<0.05 en longitud de lesión ocasionada por el hongo entre años. En el ciclo 2010, se observó una longitud de lesi ón promedio significativamente mayor (10.10 cm en comparación con el ciclo 2011 (5.79 cm. Los genotipos con menor longitud de lesión en promedio de los dos ambientes fueron: Fortuna y Mazatlán - 16 (3.5 y 4.95 cm, respectivamente . L os genotipos con mayor longitud de lesión fueron Kilate, G - STAR - 7402 y G - STAR - 7205 (13.2, 15.7 y 16.65 cm, respectivamente. No existió correlación entre la longitud de lesión y rendimiento de grano. Las variedades Fortuna y Mazatlán - 16 mostraron menor daño a M. phaseolina , por lo cual se sugieren para siembras de temporal y como progenitores en la formación de híbridos de sorgo tolerantes a esta enfermedad.

  8. Volatile profile and sensory quality of new varieties of Capsicum chinense pepper Perfil de voláteis e qualidade sensorial de novas variedades de pimentas Capsicum chinense

    Directory of Open Access Journals (Sweden)

    Deborah dos Santos Garruti

    2013-02-01

    Full Text Available The objective of this study was to compare the sensory quality and the volatile compound profile of new varieties of Capsicum chinense pepper (CNPH 4080 a strain of'Cumari-do-Pará' and BRS Seriema with a known commercial variety (Biquinho. Volatiles were isolated from the headspace of fresh fruit by SPME and identified by GC-MS. Pickled peppers were produced for sensory evaluation. Aroma descriptors were evaluated by Check-All-That-Apply (CATA method, and the frequency data were submitted to Correspondence Analysis. Flavor acceptance was assessed by hedonic scale and analyzed by ANOVA. BRS Seriema showed the richest volatile profile, with 55 identified compounds, and up to 40% were compounds with sweet aroma notes. CNPH 4080 showed similar volatile profile to that of Biquinho pepper, but it had higher amounts of pepper-like and green-note compounds. The samples did not differ in terms of flavor acceptance, but they showed differences in aroma quality confirming the differences found in the volatile profiles. The C. chinense varieties developed by Embrapa proved to be more aromatic than Biquinho variety, and were well accepted by the judges.O objetivo deste estudo foi comparar a qualidade sensorial e o perfil de compostos voláteis de novas variedades de pimenta Capsicum (CNPH 4080, uma linhagem de cumari-do-pará, e BRS Seriema, com uma variedade comercial (Biquinho. Voláteis foram isolados do headspace dos frutos in natura por SPME e identificados por CG-EM. Conservas das pimentas foram produzidas para a análise sensorial. Descritores do aroma foram avaliados pelo método Check-All-That-Apply (CATA e os dados de frequência submetidos à Análise de Correspondência. A aceitação do sabor das amostras foi analisada por meio de ANOVA. A BRS Seriema apresentou rico perfil de voláteis, com 53 compostos identificados, sendo que cerca de 40% deles são compostos de aroma doce. A CNPH 4080 apresentou perfil semelhante ao da pimenta Biquinho, por

  9. Qualidade, compostos bioativos e atividade antioxidante de variedades de videiras do Banco Ativo de Germoplasma da Embrapa Semiárido

    OpenAIRE

    Batista, Patrício Ferreira

    2014-01-01

    A sociedade moderna busca, cada vez mais, o consumo de alimentos que possam tratar e prevenir doenças, bem como aumentar a longevidade. Entre estes, destacam-se os alimentos funcionais, incluindo bebidas, ricos em compostos antioxidantes com ação benéfica à saúde já comprovada, como uvas e os seus derivados. Em vista disto, um estudo foi conduzido com o objetivo de identificar variedades de uvas destinadas ao consumo in natura e ao processamento que, além de atender aos requerimentos de quali...

  10. Características del análisis proximal de harinas obtenidas de frutos de plátanos variedades Papocho y Pelipita (Musa ABB Simmonds)

    OpenAIRE

    Pedro Juan Espitia-Pérez; Yuri Janio Pardo-Plaza; Alba Patricia Montalvo-Puente

    2013-01-01

    En el estudio se hizo un análisis proximal de las harinas crudas sin tratar obtenidas de frutos de las variedades de plátano Papocho y Pelipita (Musa ABB Simmonds) no comerciales en diferentes etapas de desarrollo y se analizó su posible uso como materia prima alimenticia. Los resultados comparativos mostraron que los contenidos y porcentajes de fibra cruda en Papocho variaron entre 2.54 y 1.37% y en Pelipita entre 6.45 y 0.88%, la proteína cruda en Papocho entre 6.70 y 3.81% y en Pelipita en...

  11. Caracterización y evaluación del tiempo de vulcanización de caucho natural colombiano obtenido de tres variedades clonales de hevea brasiliensis

    OpenAIRE

    Velásquez, Sandra M.; Giraldo, Diego H.

    2014-01-01

    En las últimas décadas se desarrollan en Colombia importantes proyectos productivos de caucho natural, pero aún hay aspectos por estudiar sobre las propiedades de los materiales producidos. En este trabajo se caracteriza mediante FTIR, DSC y TGA caucho natural obtenido de las variedades clonales FX3864, IAN710 e IAN873 predominantes en Tarazá, Antioquia, comparándolo con caucho de Guatemala SGR10 y caucho técnicamente especificado de Caquetá-Colombia. Se obtuvieron compuestos de caucho siguie...

  12. Reorientación de la división dialectal hispánica: datos de variedades venezolanas e ibéricas

    OpenAIRE

    Godsuno Chela-Flores; Giovanna D'Aquino

    2003-01-01

    Se cuestiona el tradicional enfoque dicotómico de la dialectología hispánica: los dialectos del español americano han sido clasificados como "conservadores" o "radicales" sobre la base de la divergencia entre la ortografía y la pronunciación de las consonantes posnucleares; dicha clasificación está vinculada con la geografía americana. Se demuestra lo inadecuado de tal división con datos recientes sobre procesos prenucleares y posnucleares de variedades venezolanas. Además, se explora la viab...

  13. El modelo v.s.p. en lechuga batavia lactuca sativa var. capitata l. y respuesta de dos variedades a las aplicaciones de compuestos orgánicos

    OpenAIRE

    Vélez M., José F.; Garzón, José L.; Bruzón C., Serapio F.

    2010-01-01

    En el Corregimiento Pavitas, municipio de La Cumbre, en la Finca Santafé, a 1.480 msnm en un suelo de la Asociación Pavas (Aeric Tropaquept) se probó el modelo vaso-sustrato-planta (VSP), en la producción de plántulas de lechuga Batavia L. sativa var. capitata y el efecto en la producción de los compuestos orgánicos, cachaza, lombricompuesto, gallinaza y bovinaza, incorporados al suelo. Los 22 tratamientos con cuatro repeticiones, repartidos en dos variedades (Great Lake 118 y Pacific) corres...

  14. Costos y rendimientos de producción de tres néctares de manzana (pyrusmalusl) variedades Anna, Pensilvania y Winter

    OpenAIRE

    Darío Alberto Pinto Medina; Yesenia Fernández Vargas; Efrain Martinez Quintero

    2016-01-01

    La agroindustria en Colombia se muestra como una alternativa para dar aprovechamiento eficiente a materias primas de origen agropecuario, especialmente aquellas que por parámetros de calidad, no salen al mercado y generan cuantiosas pérdidas a agricultores y ganaderos; esta investigación se basó principalmente en el aprovechamiento de la manzana (Pyrus malus L), se elaboró néctar con tres variedades producidas en el departamento de Boyacá, Colombia: Pensilvania, Anna y Winter y se evaluaron l...

  15. "Titán" y "Regio", variedades de pasto Buffel (Pennisetum ciliare) (L.) Link para zonas áridas y semiáridas

    OpenAIRE

    Beltrán López, Sergio; García Díaz, Carlos Alberto; Loredo Osti, Catarina; Urrutia Morales, Jorge; Hernández Alatorre, José Antonio; Gámez Vázquez, Héctor Guillermo

    2017-01-01

    RESUMEN: El pasto buffel (Pennisetum ciliare) es una gramínea perenne, originaria de Sud África, de buen valor forrajero que se adapta bien a una amplia gama de suelos y condiciones climáticas. Las variedades de pasto buffel Titán y buffel Regio provienen de colectas realizadas en el centro y norte de México. Fueron evaluadas en zonas áridas y semiáridas, en temporal y riego desde 1986 hasta la obtención del registro en el año 2008. Los registros definitivos otorgados por parte del Sistema Na...

  16. Aplicación de las técnicas de cultivo in vitro en el saneamiento de variedades de higuera

    OpenAIRE

    López-Corrales, M.; Gella, Rafael; Marín Velázquez, Juan Antonio

    1996-01-01

    En este trabajo, se ha estudiado la aplicación de las técnicas de cultivo in vitro en el saneamiento de variedades de higuera para aumentar la eficiencia en el proceso de regeneración de plantas tratadas por termoterapia convencional. Al mismo tiempo, se estudió la termoterapia iii vitro basada en la aplicación del tratamiento térmico a los cultivos establecidos y en fase de multiplicación iii vitro.

  17. Radiotherapy of bronchogenic carcinoma

    International Nuclear Information System (INIS)

    Heilmann, H.P.

    1982-01-01

    Radiotherapy of branchogenic carcinoma comprises; palliative treatment, postoperative or pre-operative radiotherapy, radiotherapy as part of a combination of chemotherapy and radiotherapy of small cell carcinoma and curative radiotherapy of non-operable non-small cell carcinoma. Atelectasis and obstruction are indications for palliative radiotherapy. Postoperative radiotherapy is given only in cases of incomplete resection or mediastinal metastases. In the treatment of small cell carcinoma by combined irradiation and chemotherapy the mediastinum and primary tumour are irradiated, generally after chemotherapy, and the C.N.S. receives prophylactic radiotherapy. Curative radiotherapy is indicated in cases of non-operable small cell carcinoma. Irradiation with doses of 60-70 Gy produced 5-years-survival rates of 10-14% in cases classified as T 1 -T 2 N 0 M 0 . (orig.) [de

  18. Caracterización morfológica de variedades de vid para producción de Pisco bajo condiciones de la zona media del valle de Ica, Perú

    Directory of Open Access Journals (Sweden)

    H. Cáceres

    2017-01-01

    Full Text Available El estudio consiste en la caracterización morfológica de las ocho variedades de uvas pisqueras “Torontel, Italia, Mollar, Quebranta, Negra criolla, Albilla, Moscatel y Uvina” cultivadas en el CITEagroindustrial. Se utilizó la lista de descriptores de la Organización Internacional de la Viña y del Vino para variedades de vid y especies de Vitis versión 2009. Algunos de los caracteres ampelográficos como el color y forma de las bayas del estado fenológico de maduración es info rmación generalizada; sin embargo, al evaluar los 56 descriptores en otros estados fenológicos se observan diferencias. Por lo tanto, la descripción de las variedades que se muestran aportan una mayor precisión a la caracterización y sirven de guía a los p roductores de Pisco y productores de uvas para la sencilla y correcta identificación en campo de sus plantas, ya que existe confusión en la identificación de las distintas variedades, como la homonimia y la identificación incorrecta de variedades .

  19. Caracterización de la respuesta fisiológica de tres variedades de papa (Solanum tuberosum L.) bajo condiciones de estrés por déficit hídrico

    OpenAIRE

    Rodriguez Pérez, Loyla

    2015-01-01

    En esta tesis se evalúo la respuesta fisiológica, bioquímica y de fenología de tres variedades colombianas de papa (Solanum tuberosum L.) sometidas a déficit hídrico y rehidratación. La hipótesis planteada fue que con base en el comportamiento de las variedades en las zonas de producción, las tres variedades de Solanum tuberosum L. presentarían respuesta diferencial a un período de déficit hídrico por suspensión del riego. El objetivo de este estudio fue determinar el comportam...

  20. Obtención de plantas sanas de papa, Solanum tuberosum L. Variedad salentuna. A través de las técnicas de termoterapia y cultivo de meristemas in vitro.

    Directory of Open Access Journals (Sweden)

    Marulanda Aguirre Adriana

    2001-09-01

    Full Text Available Se obtuvieron plantas Super Elite de papa (Solanum tuberosum L., de la variedad regional Salentuna, catalogada como papa filia, implementando las técnicas de termoterapia, cultivo in vitro de meristemas y multiplicación acelerada. Se limpió esta variedad del complejo de enfermedades que la afectaban, para entregarle a los productores un material sano que los motive a regresar al campo con una alternativa de producción de mayor calidad y rentabilidad. La falta de semilla sana es una necesidad sentida por los agricultores del departamento de Caldas, pues hace más de treinta años que no se renueva el material vegetal y no existen programas de producción de semilla certificad de esta variedad en el país.

  1. Reação de variedades e clones de laranjas a Xylella fastidiosa Reaction of oranges varieties and clones to Xylella fastidiosa

    Directory of Open Access Journals (Sweden)

    Paulo Sergio de Souza

    2006-04-01

    Full Text Available A clorose variegada dos citros (CVC é uma doença grave, causada por Xylella fastidiosa. As medidas usuais de controle mostram-se pouco eficientes ou práticas e com alto custo. Dessa forma, o uso de variedades resistentes e/ou tolerantes desponta como a alternativa mais eficiente, razão pela qual se julgou oportuna a realização deste trabalho. O presente estudo teve como objetivo avaliar o comportamento de variedades e clones de laranjas introduzidas em relação a X. fastidiosa. Foram estudados 59 variedades e clones de laranjas doces e 2 de laranjas azedas introduzidos da França, Itália e Portugal. O delineamento experimental foi o de blocos casualizados (DBC, com 62 tratamentos e 4 repetições, incluindo a variedade 'Pêra', como padrão. Cada parcela continha duas plantas, sendo uma inoculada e a outra sem inoculação. Para a inoculação do patógeno, foi empregado o método de encostia, utilizando-se de mudas infectadas. Para a avaliação da incidência da doença, utilizou-se de dados qualitativos, positivos ou negativos, enquanto para severidade empregou-se escala de notas, que foi estabelecida baseando-se nos sintomas de CVC, confirmados através dos testes de PCR. As variedades de laranjas azedas Beja e Sr. Pinto e as laranjas doces Navelina ISA 315, Navelina SRA 332 e Newhall Navel SRA 343 não apresentaram sintomas em folhas até 27 meses após a inoculação.Citrus variegated chlorosis (CVC is a serious disease, caused by Xylella fastidiosa, being the most important to the Brazilian citriculture. The usual measures of control show less efficient or practice and they are very expensive. The use of resistant varieties is showed as the most efficient, consisting the aimed of this research. The objective of the present work was study the behavior of varieties and clones introduced in relation to X. fastidiosa. Were studied 59 varieties and clones of sweet oranges and 2 sour oranges introduced from France, Italy and Portugal

  2. Características morfológicas e desempenho de crescimento de monossexo macho de tilápia da variedade GIFT e Saint Peter®

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    Nilton Garcia Marengoni

    2015-10-01

    Full Text Available Este estudo teve como objetivo comparar as características morfológicas e o desempenho de populações monossexo macho de tilápia da variedade Genetic Improved Farmed Tilapia (GIFT e Saint Peter® cultivadas em um sistema misto. O experimento foi conduzido durante o período de junho a novembro de 2012, na Estação da Piscicultura Sgarbi, no Município de Palotina. Os juvenis da GIFT foram obtidos de reprodutores da Estação de Piscicultura da Universidade Estadual de Maringá (UEM/Codapar e os híbridos vermelhos foram oriundos de reprodutores da Estação da Piscicultura Sgarbi. Os valores genéticos médios da variedade GIFT para três grupos genéticos (I, II e III foram obtidos por meio de uma avaliação genética pelo Best Linear Unbiased Prediction (BLUP, utilizando o controle de parentesco das tilápias. Informação de pedigree completo da GIFT desde a sua introdução no Brasil foi utilizado e os grupos genéticos foram classificados como I (grupo superior, II (grupo intermediário e III (grupo inferior. Utilizou-se o sistema semi-intensivo, sendo adotada a densidade de 4,7 peixes m-2 de lâmina de água. Foram alojados 480 peixes da variedade GIFT e 1400 peixes do híbrido vermelho, totalizando 1880 animais, com peso médio inicial de 15 g. Os peixes foram identificados individualmente através de Passive Integrated Transponder (PIT tags. A despesca foi realizada ao final do período de 160 dias. Os dados de peso final e ganho em peso diário, e das características morfológicas incluindo comprimento total, comprimento padrão, comprimento da cabeça, altura da cauda, altura do corpo, largura da cauda, largura do corpo, comprimento da cabeça/comprimento padrão, área e volume corporal foram avaliados. Aplicou-se a análise de variância (ANOVA e o teste de Tukey a 5% de probabilidade. Os valores médios de peso final e ganho em peso diário entre os três grupos genéticos da GIFT não apresentaram diferenças significativas

  3. Efecto de micorriza vesiculo-arbuscular en café Coffea arabica L. variedad Colombia en almacigo

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    Sánchez de Prager Marina

    1990-06-01

    Full Text Available A fin de seguir el proceso de infección y esporulación de hongos MVA y evaluar el efecto de su inoculación en café variedad Colombia, se efectuó un ensayo en suelo recolectado en Sevilla (Valle. Se establecieron seis tratamientos: suelo natural, natural + refuerzo, desifestado, desinfestado + Entrophospora colombiana, desinfestado + Glomus manihotis y desinfestado + Acaulos Rora myriocarpa. Se obtuvieron plántulas en arena estéril que se trasplantaron e inocularon a los dos meses. La distribución dentro de los tratamientos fue completamente al azar. Se cosecharon 3 plantas/tratamiento cada quince días durante cinco meses. Se evaluó altura, peso seco parte aérea, área foliar, infección en raíces por hongos MVA, esporas/g suelo seco, análisis foliar para N, P, K, Ca y Mg y cualificación de hongos implicados en la simbiosis. En suelo natural predominaron especies del género Glomus G. manihotis, E. colombiana y A. myriocarpa se encontraron haciendo parte de la flora nativa. Ocho días después del trasplante ya había infección por hongos micorrizogenos; las especies evaluadas difirieron en su capacidad infectiva. La mejor esporulación ocurrió a los cien días de trasplante. G. manihotis además de estimular el mayor crecimiento favoreció el desarrollo vegetativo del café, tornó a las plantas más eficientes en la absorción de N, P, K, Ca y Mg, lo cual es de esperarse dado el extenso desarrollo radical que en esta asociación triplica a los valores obtenidos en suelo natural y desinfestado.A greenhouse experiment was carried out in order to monitor the infection, VAM fungi sporulation and the influence of micorrhiza inoculation on Colombia coffe cultivar. The following treatments were set up: natural soil, + inoculum; desinfested soil + Glomus manihotis; desinfested soil + Entrophospora colombiana; desinfested soil + Acaulospora

  4. Elaboración de aceitunas denominadas “Green ripe olives” con variedades españolas

    Directory of Open Access Journals (Sweden)

    Brenes, Manuel

    2005-09-01

    Full Text Available Consumers are nowadays demanding a certain type of table olive with low acidity, a pH higher than 4.5 and yellow-green to yellow in colour. These are produced in the USA under the name “green ripe olivesâ€� and their sterilization is absolutely necessary. It was demonstrated in this work that the Spanish olive varieties Manzanilla and Hojiblanca can be elaborated as “green ripe olivesâ€� giving rise to a good quality product. However, it was also observed that after alkaline treatment the olives had to be thoroughly washed. A high volume of wash water was needed to neutralize olive flesh but also to eliminate certain compounds that gave rise to an undesirable odour in the final product as a consequence of the heat treatment. A rapid neutralization of olive flesh with CO2 was not enough to eliminate the off-odor. Likewise, the use of two alkaline treatments instead of only one did not improve the quality of the product. Therefore, it is considered necessary to study new alternative methods of preparing “green ripe olivesâ€� with less wash water volume and better organoleptic olive properties.Existe por parte de los consumidores una demanda creciente de aceitunas de muy baja acidez con pH superior a 4,5 y color verde amarillento/amarillo. Es necesario, por tanto, su esterilización y en Estados Unidos se conocen bajo la denominación “green ripe olivesâ€�. En este estudio se ha comprobado que las variedades españolas Manzanilla y Hojiblanca son susceptibles de elaborarse bajo la denominación “green ripe olivesâ€� aunque después del tratamiento alcalino es necesario llevar a cabo un número elevado de lavados de los frutos con vistas no sólo a neutralizar la pulpa sino también eliminar ciertos compuestos que originan un sabor inaceptable en el producto durante el tratamiento térmico. La neutralización rápida de la pulpa con anhídrido carbónico no es suficiente para reducir el n

  5. Métodos indirectos para estimar masa radical en caña de azúcar, variedad CC 8592

    Directory of Open Access Journals (Sweden)

    Mejia M. S.

    2004-12-01

    Full Text Available En casas de malla (31°C, 58% HR se evaluaron tres metodologías no destructivas (capacitancia eléctrica, amperaje, resistencia eléctrica para estimar la masa radical en caña de azúcar variedad CC 8592. El material vegetal se sometió a diferentes niveles de humedad en el sustrato. Se utilizó un diseño completamente al azar, con 13 repeticiones; las plantas se sembraron en materos plásticos (3 kg con cachaza - carbonilla (3:1; 24 horas antes de las mediciones se saturó el sustrato con agua. Mediante regresión lineal se obtuvieron las siguientes ecuaciones que relacionaron capacitancia (X con masa radical fresca (Y: Y = 6.841X - 49.623 (R2 = 0.829, P < 0.001, y con la masa radical seca: Y = 0.9546X - 7.4649 (R2 = 0.545, P < 0.001. La relación del amperaje con la masa radical fresca fue: Y = 0.4138X - 48.194 (R2 = 0.850, P <0.001 y con la masa radical seca: Y = 0.0577X - 7.2575 (R2 = 0.559, P <0.001; este método presentó mayor confiabilidad que el del capacitómetro. El método de la resistencia eléctrica no presentó resultados confiables. ABSTRACT Indirect methods to estimate the root biomass in sugar cane, cultivar CC 8592. In greenhouses (31°C, 58% RH three nondestructive methods were evaluated (electrical capacitance, amperage electrical resistance to estimate the root biomass. There was used a completely randomized design, with 4 treatments and 13 replications, the plants were seeded in plastic pots (3 kg using a mix of cachaza and fine coal (3:1; 24 hours before the measurements the substrate was saturated with water. By means of linear regression were obtained the following equations that relate fresh root (Y and capacitance (X: Y = 6.841X - 49.623 (R2 = 0.829, P < 0.001; and dry root biomass to capacitance: Y = 0.9546X - 7.4649 (R2 = 0.545, P < 0.001. The relation of fresh root biomass and amperage was Y = 0.4138X - 48.194 (R2 = 0.850, P < 0.001 and dry root biomass with amperage, Y = 0.0577X - 7.2575 (R2 = 0.559, P

  6. DESENVOLVIMENTO INICIAL DE DUAS VARIEDADES DE ALFACE EM FUNÇÃO DE DOIS TIPOS DE SUBSTRATOS E COBERTURA DO SOLO / INITIAL DEVELOPMENT OF TWO VARIETY LETTUCE IN FUNCTION OF TWO TYPES OF SUBSTRATES AND GROUND COVER

    Directory of Open Access Journals (Sweden)

    A. de A. L. Souza

    2016-09-01

    Full Text Available Objetivou-se neste trabalho avaliar desenvolvimento inicial de duas variedades de alface ‘Ruby’ e ‘Manteiga’ em função dos tipos de substratos de cultivo e do tipo de cobertura do solo. O trabalho foi desenvolvido em Telado Agrícola e Laboratório de Fitossanidade e Sementes, no Instituto Federal de Educação, Ciência e Tecnologia do Ceará, em Sobral. As sementes das duas variedades foram postas para germinar em bandejas de poliestireno expandido (isopor de 128 células; quando estas apresentavam quatro folhas definitivas, cerca de 20 dias após a semeadura, foram transplantadas para o local definitivo, em vasos com capacidade de 8,0 L. O ensaio foi disposto em Delineamento Inteiramente Casualizado (DIC em esquema fatorial 2 x 2 x 3, subdivididas no tempo, sendo duas variedades de alface (‘Ruby’ e ‘Manteiga’, dois tipos de substratos (areia - SMO e esterco - CMO, e três tipos de coberturas do solo (testemunha (sem cobertura, bagana de carnaúba - BC e Mulching - MUL, em quatro épocas de avaliação (10, 20, 30 e 40 DAT. De acordo com os resultados obtidos com o ensaio, constatou-se que o uso dos diferentes substratos utilizados não interferiu na área foliar das variedades de alface avaliadas; A cobertura de solo, tanto o mulching quanto a bagana de carnaúba, mostraram resultados significativos para o desenvolvimento das variedades de alface utilizadas, mostrando-se que além de eficiente em reter água no solo, também auxilia na inibição do surgimento de plantas daninhas, reduzindo assim a competição entre elas e as variedades de alface.

  7. Producción de rastrojo y grano de variedades locales de maíz en condiciones de temporal en los valles altos de Libres-Serdán, Puebla, México

    Directory of Open Access Journals (Sweden)

    Faviola Muñoz-Tlahuiz

    2013-01-01

    Full Text Available El rastrojo de maíz es un subproducto importante para la alimentación de varias especies pecuarias en unidades de producción bajo condiciones de temporal de los valles altos de México. En estas zonas se carece de variedades que produzcan en suficiencia grano y rastrojo (variedades de doble propósito; por lo que en el presente estudio se evaluó la producción de rastrojo y grano de variedades locales de maíz en los valles altos de Puebla y Tlaxcala, México. Se colectó semilla en las regiones Libres-Mazapiltepec-Huamantla (L-M-H y Serdán-Tlachichuca-Guadalupe Victoria (S-T- GV. Para cada región se evaluaron 144 variedades, incluyendo cuatro testigos comerciales, en dos localidades bajo un diseño látice simple 12x12 con dos repeticiones. Se midió rendimiento de rastrojo, producción de hoja y tallo, altura de planta y de mazorca, días a floración femenina, y rendimiento de grano. En cada experimento se realizó un análisis de varianza y por cada región un análisis combinado además de un análisis de correlación canónica. En cada región se encontró una diversidad amplia para rendimiento de rastrojo y grano (P<0.01 que fue desde bajo hasta alto rendimiento. Se detectaron algunas variedades locales que para ambas características fueron sobresalientes (P<0.05. Los testigos comerciales ensayados tuvieron menores rendimientos de grano y rastrojo que las variedades locales sobresalientes.

  8. Female urethral carcinoma

    International Nuclear Information System (INIS)

    Saitoh, Masahiko; Kondo, Atsuo; Sakakibara, Toshihumi

    1988-01-01

    Urethral carcinoma in 2 females has been treated with irradiation together with adjunct chemotherapy. In case 1, a 73-year-old female with squamous cell carcinoma was successfully treated with irradiation of 4,000 rad and peplomycin of 60 mg intravenously given. She has been free from the disease for the past 43 months. In case 2, a 61-year-old female with transitional cell carcinoma was initially treated with irradiation of 5,000 rad together with peplomycin 90 mg, which was followed by another 5,000 rad irradiation. The tumor recurred and the patient was operated on for cystourethrectomy and partial resection of the vagina. A further chemotherapy of cisplatin, peplomycin, and mitomycin C was instituted. She died of the tumor recurrence 23 months after the first visit to our clinic. Diagnosis and treatment modalities on the female urethral carcinoma are briefly discussed. (author)

  9. Radiosensitivity of hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Hennequin, C.; Quero, L.; Rivera, S.

    2011-01-01

    The frequency of hepatocellular carcinoma (HCC) is increasing in the western world and the role of radiotherapy is more and more discussed. Classically, hepatocellular carcinoma was considered as a radioresistant tumour: in fact, modern radio-biologic studies, performed on cell lines directly established from patients, showed that hepatocellular carcinoma has the same radiosensitivity than the other epithelial tumours. From clinical studies, its α/β ratio has been estimated to be around 15 Gy. Radiosensitivity of normal hepatic parenchyma is now well evaluated and some accurate NTCP models are available to guide hepatic irradiation. The biology of hepatocellular carcinoma is also better described: the combination of radiotherapy and targeted therapies will be a promising approach in the near future. (authors)

  10. Cryotherapy for hepatocellular carcinoma

    DEFF Research Database (Denmark)

    Awad, Tahany; Thorlund, Kristian; Gluud, Christian

    2009-01-01

    BACKGROUND: Hepatocellular carcinoma is the most common primary malignant cancer of the liver. Evidence for the role of cryotherapy in the treatment of hepatocellular carcinoma is controversial. OBJECTIVES: The aim of this review is to evaluate the potential benefits and harms of cryotherapy...... for the treatment of hepatocellular carcinoma. SEARCH STRATEGY: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, and LILACS until June 2009. We identified further studies by searching...... of benefit but included for the assessment of harm. Both severe and non-severe adverse events were reported, but the true nature and extent of harm was difficult to asses. AUTHORS' CONCLUSIONS: At present, there is no evidence to recommend or refute cryotherapy for patients with hepatocellular carcinoma...

  11. Thyroid cancer - papillary carcinoma

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/000331.htm Thyroid cancer - papillary carcinoma To use the sharing features on ... the lower neck. Causes About 80% of all thyroid cancers diagnosed in the United States are the papillary ...

  12. MEDULLARY THYROID CARCINOMA

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    V. S. Medvedev

    2013-01-01

    Full Text Available Medullary thyroid carcinoma belongs to orphan diseases affecting a small part of the population. Multicenter trials are required to elaborate a diagnostic algorithm, to define treatment policy, and to predict an outcome.

  13. Efecto de la fertilización orgánica, la variedad y la época en el perfil polifenólico de Morus alba (L.

    Directory of Open Access Journals (Sweden)

    D. E. García

    2005-01-01

    Full Text Available Con el objetivo de detectar los principales grupos de fenoles en la biomasa de la morera y de-terminar el efecto del abonado (0, 100, 300 y 500 kg N/ha/año, la variedad (Cubana, Indonesia, Tigreada y Acorazonada y la época (periodo lluvioso y poco lluvioso, en el perfil polifenólico, se llevó a cabo una investigación con un diseño de bloques (al azar con arreglo factorial 4 x 4 x 2 y cinco repeticiones. Mediante el tamizaje fitoquímico se evaluó la presencia de siete grupos de compuestos, para posteriormente, determinar sus concentraciones. Únicamente se detectaron fenoles (FT, flavonoides (Flav y cumarinas (Cum, con presencia leve, notable o cuantiosa. Sólo se encontraron interacciones significativas entre los factores fertilización y variedad para los FT y las Cum (P<0,05. Los niveles máximos de FT y Cum encontrados en las hojas fueron de 2,86% MS (Tigreada abonada con 100 kg N/ha/año y 0,65% MS (Cubana e Indonesia fertilizadas con 100 kg N/ha/año, respectivamente. Las mayores concentraciones de FT y Cum en los tallos tiernos se observaron en la variedad Acorazonada con 100 kg N/ha/año (1,55% MS e Indonesia, con la aplicación de 500 kg N/ha/año (0,60% MS. En las hojas de las variedades (los contenidos de FT y Cum tendieron a disminuir con el incremento de los niveles de fertilización, a excepción de las concentraciones de FT, en la variedad Cubana. En el caso de los Flav, no se observó un efecto significativo de los factores fertilización, variedad y época. Solamente en los FT de las hojas, se observó un efecto representativo de la época a favor del PLL. Los resultados permiten concluir que las concentraciones de los FT se ven afectadas por los niveles de fertilización, la variedad y la época. Los contenidos de Cum presentan variaciones significativas entre los niveles de abonado orgánico y las variedades. Los niveles de Flav no muestran fluctuaciones cuantiosas con ninguna de las variables estudiadas.

  14. Achalasia Carcinoma Sequence

    OpenAIRE

    Makmun, Dadang

    2001-01-01

    We report a case of carcinoma of the esophagus in a 58 years old woman with achalasia, who has been diagnosed since 30 years ago, which initiated by surgical treatment (myotomy) and the symptoms recurred since 3 years ago. According to the progress of the disease, Malignancy was strongly suspected due to prolonged stasis and mucosal irritation caused by achalasia (achalasia carcinoma sequence). Because of these contributing factors for the development of serious complications such as Malignan...

  15. Papillary thyroid carcinoma

    DEFF Research Database (Denmark)

    Godballe, C; Asschenfeldt, P; Sørensen, J A

    1994-01-01

    The age influence on the prognosis of papillary thyroid carcinoma was analyzed in a group of 67 patients. A marked decline in cause-specific survival was found for patients older than 60 years of age at the time of diagnosis. In order to find a tumor-biological explanation of the prognostic...... invasion and distant metastases. The results indicate that 60 years of age the time of diagnosis may be the "prognostic break-point" for papillary thyroid carcinoma....

  16. [Pulmonary sarcomatoid carcinoma].

    Science.gov (United States)

    Antoine, Martine; Vieira, Thibault; Fallet, Vincent; Hamard, Cécile; Duruisseaux, Michael; Cadranel, Jacques; Wislez, Marie

    2016-01-01

    Pulmonary sarcomatoid carcinomas are a rare group of tumors accounting for about one percent of non-small cell lung carcinoma (NSCLC). In 2015, the World Health Organization classification united under this name all the carcinomas with sarcomatous-like component with spindle cell or giant cell appearance, or associated with a sarcomatous component sometimes heterologous. There are five subtypes: pleomorphic carcinoma, spindle cell carcinoma, giant cell carcinoma, carcinosarcoma and pulmonary blastoma. Clinical characteristics are not specific from the other subtypes of NSCLC. Epithelial to mesenchymal transition pathway may play a key role. Patients, usually tobacco smokers, are frequently symptomatic. Tumors are voluminous more often peripherical than central, with strong fixation on FDG TEP CT. Distant metastases are frequent with atypical visceral locations. These tumors have poorer prognosis than the other NSCLC subtypes because of great aggressivity, and frequent chemoresistance. Here we present pathological description and a review of literature with molecular features in order to better describe these tumors and perhaps introduce new therapeutics. Copyright © 2016. Published by Elsevier Masson SAS.

  17. Transplantable pancreatic acinar carcinoma

    International Nuclear Information System (INIS)

    Warren, J.R.; Reddy, J.K.

    1981-01-01

    Fragments of the nafenopin-induced pancreatic acinar cell carcinoma of rat have been examined in vitro for patterns of intracellular protein transport and carbamylcholine-induced protein discharge. Continuous incubation of the fragments with [3H]-leucine for 60 minutes resulted in labeling of rough endoplasmic reticulum, Golgi cisternae, and mature zymogen granules, revealed by electron microscope autoradiography. This result indicates transport of newly synthesized protein from the rough endoplasmic reticulum to mature zymogen granules in approximately 60 minutes. The secretagogue carbamylcholine induced the discharge of radioactive protein by carcinoma fragments pulse-chase labeled with [3H]-leucine. A maximal effective carbamylcholine concentration of 10(-5) M was determined. The acinar carcinoma resembles normal exocrine pancreas in the observed rate of intracellular protein transport and effective secretagogue concentration. However, the acinar carcinoma fragments demonstrated an apparent low rate of carbamylcholine-induced radioactive protein discharge as compared with normal pancreatic lobules or acinar cells. It is suggested that the apparent low rate of radioactive protein discharge reflects functional immaturity of the acinar carcinoma. Possible relationships of functional differentiation to the heterogeneous cytodifferentiation of the pancreatic acinar carcinoma are discussed

  18. Pegamento da enxertia em diferentes combinações de variedades e espécies utilizadas como copa e como porta-enxertos de maracujazeiro

    Directory of Open Access Journals (Sweden)

    Givanildo Roncatto

    2011-09-01

    Full Text Available O Brasil é o maior produtor de maracujá. Mas, apesar da posição de destaque, a vida útil do maracujazeiro vem sendo reduzida, principalmente, devido aos danos causados por doenças do sistema radicular. A enxertia com espécies nativas e resistentes a doenças apresenta-se como alternativa de produção. Com isso, objetivou-se avaliar o pegamento da enxertia nas combinações de variedades-copa e espécies de porta-enxertos de maracujazeiro. O trabalho foi desenvolvido em viveiro telado (50% de sombreamento, na Embrapa Acre, em Rio Branco-AC, entre setembro e dezembro de 2007. A variedade-copa utilizada para todos os tratamentos foi o maracujazeiro-amarelo 'FB 100' e 'FB 200' do viveiro Flora Brasil (Araguari-MG e outras 5 variedades regionais (UFAC-Universidade Federal do Acre, Rio Branco-AC, e os porta-enxertos foram Passiflora edulis Sims (maracujazeiro-amarelo (acesso Cuiabá-MT, P. alata, P. edulis (maracujazeiro-roxo e P. quadrangularis (acesso Guiratinga-MT, P. serrato-digitata (acesso IAC-Campinas-SP. As sementes foram previamente embebidas em água destilada por cerca de 24 h e posteriormente semeadas em tubetes plásticos (25x5cm com substrato Plantmax@. O método de enxertia utilizado foi o de fenda cheia no topo hipocotiledonar, tendo os porta-enxertos as seguintes características: três folhas verdadeiras e altura de plântula variável (6 a 8cm, 30 a 90 dias após a semeadura. Decapitaram-se as plântulas na altura dos cotilédones com lâmina de aço, as quais foram mergulhadas em água sanitária a 70%, a cada enxertia realizada. Os enxertos foram obtidos de plântula inteira, com cerca de 10 cm de comprimento, fazendo-se a limpeza das folhas. As combinações de melhor desempenho em relação ao pegamento da enxertia foram UFAC 07 sobre P. edulis (maracujazeiro-roxo e P. alata, UFAC 38 sobre P. edulis (maracujazeiro-amarelo, P. edulis (maracujazeiro-roxo e P. alata, UFAC 64 sobre P. serrato-digitata, com 100% de pegamento

  19. Ensaios de variedades de amendoim: III - Décima e décima-primeira séries de ensaios Peanut variety trials: III

    Directory of Open Access Journals (Sweden)

    Vicente Canecchio Filho

    1957-01-01

    Full Text Available No presente trabalho são relatadas experiências com 16 variedades de amendoim (Arachis hypogaea, L., recebidas dos Estados Unidos da América do Norte, do Congo Belga e de várias regiões do Brasil. Essas experiências, em número de oito, das quais três pertencentes à décima série (ano agrícola de 1953/54 e cinco compreendendo a décima-primeira série (ano agrícola de 1954/55, foram executadas nas localidades de Campinas, Ribeirão Prêto, Pindorama, Presidente Prudente e Tatuí, no Estado de São Paulo. Os resultados obtidos mostraram que, para as condições em que foram realizados os ensaios, as variedades Paulista-269, Bandeirante-263, Brasília-265, Centenário-264 e Tatuí-76, sobressairam-se das demais, notadamente a primeira, que, de um modo geral, foi bem classificada em todas as localidades, não só em relação à produção como pelo alto teor em óleo, nos frutos. A variedade Tatu-53 (testemunha, ainda bastante cultivada no Estado, classificou-se entre as piores. As maiores produções foram obtidas em terra arenosa. Nas terras roxa e roxa-misturada, também se conseguiram boas produções. Já na região representada pela terra massapê as produções foram fracas, confirmando os resultados dos anos anteriores.This paper reports the results obtained from field tests with sexteen peanut varieties received from the United States of America, Belgium Congo and several Brazilian regions. Eight experiments were conducted in the following counties of the State of São Paulo: Campinas, Ribeirão Preto, Pindorama, Presidente Prudente and Tatuí. Yield data showed the varieties Paulista-269, Bandeirante-263, Brasilia-265, Centenário-264 and Tatui-76 to prove better, particularly the first one, that ranked good classification in every locality as far as seed production and oil content of the seeds are concerned. Variety Tatu-53 which still widespreads all over the State, was one of the least yielders. The highest yields were

  20. Synchronous thyroid carcinoma and squamous cell carcinoma. A case report

    International Nuclear Information System (INIS)

    Lee, Jae Seo

    2006-01-01

    Thyroid carcinoma occurring as a second primary associated with head and neck squamous cell carcinoma (SCC) is unusual. This report presents a synchronous thyroid carcinoma and squamous cell carcinoma in the anterior palate region of a 41-year-old man. The clinical, radiologic, and histologic features are described. At 10-month follow-up after operation, no evidence of recurrence ana metastasis was present

  1. Early onset sebaceous carcinoma

    Directory of Open Access Journals (Sweden)

    Kaltreider Sara A

    2011-09-01

    Full Text Available Abstract Background Ocular sebaceous carcinoma can masquerade as benign lesions resulting in delay of diagnosis. Early recognition is even more difficult in young patients where the disease rarely occurs. Here, we provide a clinicopathological correlation of ocular sebaceous carcinoma in a young individual lacking history of hereditary cancer or immunosuppression. Findings A detailed histopathological study including p53 DNA sequencing was performed on an aggressive sebaceous carcinoma presenting in a healthy 32 year-old Caucasian woman. She had no history of retinoblastoma, evidence for a hereditary cancer syndrome, or radiation therapy. However, she potentially was at risk for excessive UV light exposure. A detailed review of the literature is also provided. A moderately well differentiated sebaceous carcinoma was established histopathologically arising from the meibomian gland of the upper eyelid. In most areas, the cytoplasm contained small but distinct Oil-red-O positive vacuoles. Direct sequencing of p53 identified a G:C→A:T mutation at a dipyrimidine site. The mutation results in substitution of arginine for the highly conserved glycine at residue 199 located at the p53 dimer-dimer interface. Energy minimization structural modeling predicts that G199R will neutralize negative charges contributed by nearby inter- and intramonomeric glutamate residues. Discussion This study points to the importance of recognizing that sebaceous carcinoma can occur in young patients with no evidence for hereditary cancer risk or radiation therapy. The G199R substitution is anticipated to alter the stability of the p53 tetrameric complex. The role of UV light in the etiology of sebaceous carcinoma deserves further study. Our findings, taken together with those of others, suggest that different environmental factors could lead to the development of sebaceous carcinoma in different patients.

  2. Propiedades físico-mecánicas del fruto y del sistema fruto-pedúnculo del café variedad Colombia.

    Directory of Open Access Journals (Sweden)

    Alvarez Tobón Elizabeth

    1999-12-01

    Full Text Available En el Centro Nacional de Investigación de café CENICAFE, se estudió para café cereza variedad Colombia de frutos amarillos y rojos, de 2,3 y 4 años en estado de maduración verde, pintón y maduro, las propiedades físicas y mecánicas del sistema fruto-pedúnculo: dimensiones de los frutos, peso, momento de inercia con respecto a los tres ejes(x, y, z, longitud, diámetro y rigidez del pedúnculo, fuerza de tracción y momentos flectores y torsores necesarios para el desprendimiento de los frutos.

  3. Elementos traza esenciales en dos variedades de trigo y cambios de distribución de los mismos causados por el procesamiento

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    Gabriela Mahecha

    2009-05-01

    Full Text Available Se analizaron por espectrofotometría de absorción atómica los elementos minerales esenciales en dos trigos duros comerciales, en las fracciones de la molienda del trigo (harina, salvado y mogolla y en el pan preparado de la harina.Las fracciones de salvado y mogolla contienen mayor cantidad de todos los minerales que el trigo original, en cambio el contenido en el pan y la harina es mas bajo. Estos resultados sugieren la posibilidad de enriquecer el pan con las fracciones de salvado y mogolla, las cuales son obtenidas del trigo en altas proporciones.La variedad IS68 contiene mayor cantidad de todos los elementos traza esenciales estudiados, siendo también superior su contenido que el reportado por otros investigadores que trabajaron en muestras americanas y francesas de diferentes áreas geográficas.

  4. Selección de variedades de tomate exportable a Estados Unidos: aplicación del modelo de Markowitz para la disminución del riesgo

    Directory of Open Access Journals (Sweden)

    Carlos Borbón Morales

    2012-01-01

    Full Text Available El tomate es la hortaliza más difundida y la de mayor valor económico. La demanda de este producto aumenta constantemente y con ella el monto producido por año. El cultivo del tomate, su procesamiento y venta están influenciados por aspectos económicos, ambientales y financieros. La viabilidad económica se ve afectada, ya que no solo depende de los cambios en las variables macroeconómicas como el tipo de cambio y el precio internacional, sino también de cambios en las condiciones climáticas y costo del paquete tecnológico, entre otras. El agricultor debe elegir las variedades y los tipos de empaque en los cuales invertirá, pues de ello dependerá el margen de utilidad que se obtendrá al finalizar el ciclo.

  5. Inoculación de Consorcios Micorrícicos Arbusculares en Coffea arabica, Variedad Caturra en la Región San Martín

    OpenAIRE

    Del Aguila, Karen M.; Vallejos-Torres, Geomar; Arévalo, Luis A.; Becerra, Alejandra G.

    2018-01-01

    Resumen El objetivo del presente estudio fue determinar el efecto de nueve consorcios micorrícicos arbusculares y la inoculación a plántulas de café Coffea arabica, variedad Caturra, comparados con un control (sin inoculación), durante siete meses en vivero. El cultivo de café en la Región San Martín es una de las actividades agrícolas económicas más importantes. Una alternativa para incrementar la producción consiste en la aplicación de hongos micorrizas. Se empleó un Diseño Completamente al...

  6. Breast carcinoma: a conservative treatment

    International Nuclear Information System (INIS)

    Campelo Gentil, F. de.

    1977-01-01

    Some factors inherent to classic therapeutic for breast carcinoma are analysed: immunology and immunotherapy; post-operative radiotherapy; multicentricity and chimiotherapy; surgery. A therapeutic schedule based on this analysis is proposed for the initial breast carcinoma. (M.A.) [pt

  7. Nevoid basal cell carcinoma syndrome

    Science.gov (United States)

    NBCC syndrome; Gorlin-Goltz syndrome; Basal cell nevus syndrome; BCNS; Basal cell cancer - nevoid basal cell carcinoma syndrome ... Nevoid basal cell carcinoma nevus syndrome is a rare genetic ... syndrome is known as PTCH ("patched"). The gene is passed down ...

  8. Proton radiotherapy of skin carcinomas

    International Nuclear Information System (INIS)

    Umebayashi, Y.; Uyeno, K.; Otsuka, F.

    1994-01-01

    At the Proton Medical Research Centre, University of Tsukuba, a pilot study of proton-beam radiotherapy was performed in 12 patients with the following types of carcinoma: Bowen's disease (4), oral verrucous carcinoma (5), and squamous cell carcinoma (3). They received total doses of 51-99.2 Gy in fractions of 2-12.5 Gy. All tumours responded well to the treatment. All four lesions of Bowen's disease, three of the five oral verrucous carcinomas, and the three squamous cell carcinomas completely regressed following irradiation. Two squamous cell carcinomas recurred during the follow-up period. One recurrent squamous cell carcinoma was successfully treated by a salvage surgical operation, and in the other case the patient refused further therapy. In two verrucous carcinomas there was 90% regression of tumour volume. No severe radiation-related complication occurred. (Author)

  9. Bilateral papillary renal cell carcinoma

    International Nuclear Information System (INIS)

    Gossios, K.; Vazakas, P.; Argyropoulou, M.; Stefanaki, S.; Stavropoulos, N.E.

    2001-01-01

    Papillary renal cell carcinoma is a subgroup of malignant renal epithelial neoplasms. We report the clinical and imaging findings of a case with multifocal and bilateral renal cell carcinoma which are nonspecific. (orig.)

  10. Stages of Merkel Cell Carcinoma

    Science.gov (United States)

    ... Genetics of Skin Cancer Skin Cancer Screening Research Merkel Cell Carcinoma Treatment (PDQ®)–Patient Version General Information About Merkel Cell Carcinoma Go to Health Professional Version Key ...

  11. PRODUCCIÓN DE TRES VARIEDADES DE Pennisetum purpureum FERTILIZADAS CON DOS DIFERENTES FUENTES NITROGENADAS EN YUCATÁN, MÉXICO

    Directory of Open Access Journals (Sweden)

    Ramos Trejo O

    2013-01-01

    Full Text Available El objetivo del trabajo fue evaluar el rendimiento (t MS ha-1 año-1 y porcentaje de proteína cruda (calidad nutritiva del pasto King grass (KNG y los clones Cubanos OM-22 y CT-115, fertilizadas con dos fuentes nitrogenadas. Las parcelas se establecieron con varetas de material vegetativo de 25 cm de largo con dos a tres yemas en surcos a 10 cm de profundidad. El marco de siembra fue de 0.5 m entre plantas y 1.0 m entre hileras con orientación de Este a Oeste. Se utilizó Urea y Agua Residual Porcina (ARP como fuentes de nitrógeno (N a dosis de 300 Kg de N ha-1 año-1. Se encontró diferencia significativa (p<0.05 en producción de materia seca (MS entre las tres variedades de forraje, el mayor rendimiento fue para el OM-22 con 155 y 160 t MS ha-1 año -1 con el uso de Urea y ARP, respectivamente. Se observó la misma tendencia con KNG con rendimiento de 131 a 140 t de MS ha-1 año-1. Las variedades OM-22, CT-115 y KNG fueron diferentes estadísticamente (p<0.05 al tratamiento testigo. No se observó efecto en la composición química por la aplicación de N. Se obtuvieron valores entre 8 y 12 % de proteína cruda (PC en los tres ecotipos. Se concluye que la fertilización con las dos fuentes nitrogenadas (Urea y ARP mejora la producción de forraje en los tres ecotipos evaluados.

  12. Efecto de la temperatura y concentración sobre las propiedades reológicas de la pulpa de mango variedad Tommy Atkins

    Directory of Open Access Journals (Sweden)

    Fabián Alberto Ortega Quintana

    2015-12-01

    Full Text Available El mango Tommy Atkins es una de las variedades más explotadas en la industria y comercialización mundial. Es valorado por su larga vida útil y poca degradación en la manipulación y transporte. El rendimiento de la pulpa es alto, entre 60 y 75% del peso total del fruto, y es utilizada en la industria de refrescos, néctares, compotas y concentrados de pulpas. En este artículo se muestran los resultados del estudio del comportamiento y los parámetros reológicos de la pulpa concentrada de mango (Mangifera indica L. variedad Tommy Atkins en el rango de temperatura 15-60°C y en el rango de concentración 15-30°Brix. Para esto, fue utilizado un viscosímetro Brookfi eld Modelo DV-II+Pro (R. La pulpa de mango presentó un comportamiento no Newtoniano seudoplástico a todas las temperaturas y concentraciones evaluadas. La relación entre el esfuerzo de corte y la velocidad de cizalla fue modelada por la Ley de Potencia o modelo de Ostwald de Waele. Los modelos de Arrhenius y la ecuación de potencia fueron ajustados adecuadamente a los datos de la viscosidad aparente de la pulpa con respecto a la temperatura y la concentración. Los valores encontrados permitirán mejorar el diseño de equipos de transporte y tratamiento térmico de la pulpa del mango Tommy Atkins.

  13. Características da variedade Fremont quando comparadas com as das tangerinas 'Ponkan' e 'Clementina Nules' Characteristics of Fremont variety compared to Ponkan and Clementina Nules tangerines

    Directory of Open Access Journals (Sweden)

    Rose Mary Pio

    2006-08-01

    Full Text Available O quadro varietal das tangerinas plantadas comercialmente é bastante restrito, concentrando-se na tangerina 'Ponkan' e no tangor 'Murcott'. Aumentar o número de variedades, assim como ampliar o período de safra são fatores importantes tendo em vista que trarão vantagens ao consumidor e ao produtor desse grupo de citros. No período de 2002 a 2005, foram estudadas as características da variedade Fremont e comparadas com as tangerinas 'Ponkan' e 'Clementina Nules', no município de Capão Bonito-SP. Pode-se concluir, dos resultados obtidos, que as plantas da tangerina Fremont são de porte reduzido (semi-anãs; os frutos apresentam características excepcionais para consumo in natura, maturação de meia-estação e período de colheita, que se estende por até três meses, sendo dessa maneira boa opção para plantios visando à entressafra da 'Ponkan'.Commercial grown tangerines variety are mainly restricted to a few options such as Ponkan tangerine and Murcott tangor. The increasing number of varieties as well as the harvest extending season is important, potentially benefiting consumers and producers of this kind of citrus. Fremont characteristics were compared to Ponkan and Clementina Nules tangerines at Capão Bonito County in São Paulo State from 2002 to 2005. By the results, it was possible to conclude that Fremont trees were semi-dwarfed, the fruits had excellent characteristics for in natura consumption and a harvesting season enlargement of three months, therefore appearing to be a good alternative for orchards, aiming at Ponkan' off-season period.

  14. Melhoramento da soja: 1. Observações preliminares sôbre o comportamento de algumas variedades de soja em São Paulo Soybean improvement in São Paulo

    Directory of Open Access Journals (Sweden)

    Shiro Miyasaka

    1955-01-01

    Full Text Available O presente trabalho relata observações preliminares sôbre o comportamento em conjunto, de variedades de soja ensaiadas na Secção de Genética do Instituto Agronômico de Campinas. As sementes daquelas variedades foram coletadas recentemente em várias partes do Estado ou introduzidas de países estrangeiros. São apresentados também os resultados de ensaio de novas variedades comerciais bem como observações sobre os caracteres agronômicos de alguns tipos mais promissores. Verificou-se que muitas das variedades recem introduzidas se mostraram inferiores à variedade Abura, que é recomendada atualmente pela Secretaria da Agricultura aos lavradores do Estado de São Paulo. Somente algumas variedades como N 47-3332, Cotia 14, Aliança Preta e Aliança, sobressaíram, carecendo de estudos mais acurados. Os resultados preliminares de um ensaio comparativo de novas variedades comerciais revelaram a alta produtividade das variedades Paraná Tardia e Yelnando. As produções das variedades Nova Granada, Pereira Barreto, LA. 455 e La 41-1219 foram ligeiramente prejudicadas pelo baixo "stand" final. O estudo da variabilidade dos característicos de 18 das melhores variedades demonstrou que, em Campinas, certa resistência ao ataque pelo nematoide Meloidogyne sp. •encontra-se nas variedades Palmetto e La 41-1219, alta porcentagem de óleo e proteína nas variedades Aliança Preta, Yelnando, La 41-1219, Cotia 14 e Acadian, alguma resistência a deiscência e ao acamamento nas variedades I.A.455, Paraná Tardia, Pereira Barreto, Aliança e Nova Granada, e resistência à moléstia "pústula bacteriana" na variedade C.N.S.. Fatores favoráveis aos característicos altura de primeira inserção das vagens, altura da planta e ciclo longo das plantas são encontrados na variedade Aliança. A variabilidade dos característicos como côr da semente, tamanho da semente, côr da flôr e da pubescência e rachadura da casca da semente foi também observada

  15. Respuesta de algunas variedades de clavel estándar a cuatro razas fisiológicas de Fusarium oxysporum f. sp. Dianthi Response of some standard carnation varieties to four physiological

    Directory of Open Access Journals (Sweden)

    Arbeláez Germán

    1996-12-01

    Full Text Available Sesenta y ocho variedades de clavel estándar se evaluaron par su respuesta patológica a las razas fisiológicas 1, 2, 4 Y 8 de Fusarium oxysporum f. sp. dianthi. Solamente las variedades Bogotá, Fabiana y Pesco fueron resistentes a las cuatro razas del patógeno. Las variedades Giallo y Jole fueron susceptibles a todas las razas. La raza fisiológica más patogénica fue la raza 2, la cual es la raza predominante en Colombia, seguida de la raza 8. Las razas 1 y 4 presentaron menor patogenicidad. En esta investigación, se propone un nuevo juego de variedades diferenciales para la identificación de las razas de Fusarium oxysporum f. sp. dianthi.Sixty eight standard carnation varieties were evaluated for their pathological response to the physiological races 1, 2 , 4 and 8 of Fusarium oxysporum f. sp. dianthi. Only Bogota, Fabiana and Pesco varieties were resistant to all races. The varieties Giallo and Jole were susceptible to the four races. The race 2, which is the predominant race in Colombia, was the most pathogenic of the four races, followed by race 8. Races 1 and 4 were less pathogenic. In this study, we propose a new set of differential varieties to identify physiological races of Fusarium oxysporum f. sp. dianthi in Colombia.

  16. Avaliação de duas variedades de cana-de-açúcar submetidas a diferentes tempos de armazenamento Evaluation of two varieties of sugar cane submitted to different storage times

    Directory of Open Access Journals (Sweden)

    Mauro Dal Secco de Oliveira

    1999-08-01

    Full Text Available Foram estudadas duas variedades de cana-de-açúcar (CO 413 e RB 72 454, com o objetivo de verificar o efeito do armazenamento pós-corte sobre suas características tecnológicas e bromatológicas. As variedades foram cortadas e armazenadas durante zero, 1,5, 3,0 e 4,5 dias. Utilizou-se o delineamento inteiramente casualizado em esquema fatorial 2 x 4 . A variedade RB 72 454 apresentou melhor maturação que a variedade CO 413. O armazenamento proporcionou aumento no teor de açúcares redutores (PA study was carried out to investigate the effects of four different storage times on technology and bromatologic characteristics in two sugar cane varieties (CO 413 and RB 72 454. The varieties were cut and stored during zero, 1.5, 3.0 and 4.5 days. It was used a completely randomized design according to a 2 x 4 factorial scheme. The RB 72 454 variety showed better dry matter level than the CO 413 variety. The storage time increased (P<0.01 the reducters sugar levels and decreased (P<0.01 the crude protein levels. When they were stored during 4.5 days, a significative (P<0.01 reduction of 14.66 and 4.04% in the levels of crude protein and gross energy, respectively, was observed.

  17. Estresse salino em duas variedades de cana-de-açúcar: enzimas do sistema antioxidativo e fluorescência da clorofila Salinity stress in two varieties of sugar cane: enzymes of the antioxidant system and chlorophyll fluorescence

    Directory of Open Access Journals (Sweden)

    Lilia Willadino

    2011-06-01

    Full Text Available O Brasil destaca-se por ser o maior produtor de cana-de-açúcar (Saccharum officinarum L. e por dominar todos os estágios da tecnologia de produção de açúcar e etanol. Atualmente se observa a expansão dessa cultura para a região semiárida brasileira, a qual apresenta solos propensos à salinização. O presente trabalho objetivou avaliar a resposta à salinidade de duas variedades de cana-de-açúcar. O ensaio foi implantado em casa de vegetação, em delineamento inteiramente casualizado, em esquema fatorial 2 x 8 com cinco repetições, correspondendo a duas variedades de cana-de-açúcar (RB867515 e RB863129 e oito níveis de NaCl (0; 25; 50; 75; 100; 125; 150; 200 mM de NaCl. A salinidade induziu aumento na fluorescência e diminuição na concentração de clorofila em ambas as variedades. A redução da clorofila, entretanto, foi maior na variedade RB867515. Observou-se, nesta mesma variedade, aumento da atividade da peroxidase do ascorbato (APX e da catalase (CAT, enquanto na variedade RB863129 ocorreu redução na atividade dessas enzimas. Esses resultados indicam que a variedade RB867515 apresenta um mecanismo mais eficiente na proteção da planta contra danos no aparato fotoquímico e contra a ação de espécies reativas de oxigênio, em particular o H2O2.Brazil is seen as being the largest producer of sugarcane (Saccharum officinarum L. and of mastering all stages in the production of sugar and ethanol. Currently this production is being expanded into the semi-arid regions of Brazil, where there are soil-types prone to salinity. This study aimed to evaluate the response to salinity in two sugarcane genotypes, RB867515 and RB863129. Salinity caused an increase in chlorophyll fluorescence and a reduction of chlorophyll concentration in both varieties. The reduction of chlorophyll however was higher in RB867515. In this same type, an increase in the activity of ascorbate peroxidase (APX and catalase (CAT was observed, while in

  18. Carcinoma arising in thyroglossal remnants

    NARCIS (Netherlands)

    van Vuuren, P. A.; Balm, A. J.; Gregor, R. T.; Hilgers, F. J.; Loftus, B. M.; Delprat, C. C.; Rutgers, E. J.

    1994-01-01

    Three patients with a papillary carcinoma arising in a thyroglossal duct cyst are presented and the literature is reviewed. This rare malignancy is seen mostly in women between the ages of 20 and 50 years. The distribution of carcinoma subtypes differs from that of thyroid carcinomas and

  19. Primary Fallopian Tube Carcinoma

    Directory of Open Access Journals (Sweden)

    Prasad K Shetty

    2011-01-01

    Full Text Available Primary Fallopian Tube Carcinoma (PFTC is rare and accounts for about 0.3% of all gynecologic cancers. Less than 1500 cases have been reported in the literature. It arises in postmenopausal women and typically presents with abdominal pelvic pain, vaginal bleeding and watery discharge. However, a correct diagnosis is rarely achieved preoperative, and in many cases, the diagnosis is made after incidental surgery for unrelated conditions commonly being ovarian carcinoma . Compared with ovarian carcinoma, PFTC more often presents at early stages, but it has a worse prognosis. PFTC is usually managed in the same manner as ovarian cancer. We report a case of Left PFTC that presented as Left ovarian mass, and we briefly review the literature.

  20. Efecto de la densidad de explantes y el volumen de medio de cultivo sobre la multiplicación in vitro de arándano (Vaccinium corymbosum L. variedades Brigitta y Legacy

    Directory of Open Access Journals (Sweden)

    Mario Rodríguez Beraud

    2015-01-01

    Full Text Available El objetivo fue evaluar la multiplicación in vitro de dos variedades de arándano (Vaccinium corymbosum L., “Brigitta” y “Legacy”, en respuesta a cinco densidades de explantes (5, 10, 15, 20 y 25 y cuatro volúmenes de medio (10, 20, 30 y 40 mL utilizando para ambas variedades el medio WPM (Woody Plant Medium en un diseño completamente al azar con 20 tratamientos y 12 repeticiones por tratamiento. Transcurrido 45 días se evaluó: altura de brote, número de brotes/explante, número de nudos/brote y número de brotes/frasco. Brigitta obtuvo la mayor altura del brote en tratamientos con densidades y volúmenes elevados, mientras que Legacy obtuvo el mayor promedio de altura del brote con densidades intermedias y volúmenes elevados. En cuanto al número de brotes/explante, el volumen de medio no influyó en la variedad Brigitta, en cambio, altas densidades la afectaron significativamente, mientras que en Legacy el máximo número de brotes se alcanzó con densidades bajas y volúmenes intermedios. En relación al número de nudos por explante Brigitta obtuvo los valores más bajos comparados con Legacy, pero en ambas variedades se produjo una disminución del número de nudos con menores volúmenes de medio. Para el número de brotes por frasco Brigitta obtuvo las mayores respuestas con densidades elevadas, superando los 40 brotes por frasco. En cambio, en Legacy el resultado máximo se obtuvo con la densidad 25 explantes en 30 mL de medio. Por lo tanto, se concluye que ambas variedades fueron influenciadas tanto por el volumen del medio como la densidad de explantes.

  1. Lacrimal gland ductal carcinomas

    DEFF Research Database (Denmark)

    Andreasen, Simon; Grauslund, Morten; Heegaard, Steffen

    2017-01-01

    and xerophtalmia; case 2: A 53-year-old man, presented with headache, proptosis and chemosis and case 3: A 73-year-old man, presenting with chemosis and a corneal abscess. All three cases were characterized morphologically including immunohistochemistry and genetically with fluorescence in situ hybridization (FISH...... HER2 amplification was found in cases 2 and 3. CONCLUSION: This study identified a spectrum of genetic events and pattern of protein expression in DC of the lacrimal gland similar to a subset of carcinomas of the breast and ductal carcinomas of the salivary glands. For therapeutic purposes...

  2. Primary adrenal sarcomatoid carcinoma

    Directory of Open Access Journals (Sweden)

    Aftab S. Shaikh

    2014-03-01

    Full Text Available Adrenal sarcomatoid carcinomas are extremely rare tumors presenting with extensive locoregional spread at the time of diagnosis. Patients succumb to metastases within a couple of months. As a result, very few cases are reported in the literature until now. We present a case of a 62-year old female with non-functional sarcomatoid carcinoma of the right adrenal gland. There was no radiological evidence of locoregional metastases. Patient underwent right adrenalectomy. Follow up after 3 months showed para-aortic lymphadenopathy and similar left adrenal mass on computed tomography. Patient refused further treatment and succumbed to the disease. A brief case report with review of literature is presented.

  3. Thyroid carcinoma in children

    International Nuclear Information System (INIS)

    Akhzari, F.

    2002-01-01

    Thyroid cancer is rare in children, with only 3-6% of thyroid malignancies occurring in children, and constitutes but 6% of head and neck tumors. Over 95% thyroid cancer are differentiated, and 10% of these occur in children of adolescents. Any of the histologic types that occur in adults may be in children, but they are most often differentiated thyroid carcinomas. The etiologies of thyroid carcinoma are unknown, but factors considered in pathogenesis include irradiation, sex and age. The incandesce of thyroid carcinoma in a solitary coddle in a child has been described as high as 70%. History and /or physical examination alone are unlikely to advance the diagnosis, and with exception of plasma CT in medullary thyroid carcinoma, blood studies are unhelpful in the diagnosis of thyroid carcinoma. Radiographs and ultrasound imaging are helpful in planning treatment and follow-up, but are unlikely to be needed for initial diagnosis. One of the main indication of thyroid scan in the pediatric group is thyroid nodule. FNAB is established as the most effective method of diagnosis in adults, although in children it may be less reliable. While radionuclide scintigraphy may be considered for initial screening, FNAB is well established and its specificity allows it to negate the need for a substantial number of operation. Treatment of differentiated thyroid carcinoma in children is more controversial. Some authors maintain that modified or subtotal thyroidectomy is appropriation this disease, others maintain that total thyroidectomy is required Nevertheless, radioiodine therapy is considered to be standard in the treatment of iodine-avid thyroid carcinomas for ablation of the thyroid remnant following surgery and for treatment of iodine-avid distant diseases. The front-line treatment of medullary thyroid carcinoma is aggressive surgery. Total thyroidectomy is indicated, In general treatment with chemotherapy, extemal radiation and I-131 are not helpful, however radioactive

  4. Urachal carcinoma: imaging findings

    International Nuclear Information System (INIS)

    Monteiro, Vanessa; Cunha, Teresa Margarida

    2012-01-01

    Urachal carcinoma is a rare neoplasm, which accounts for only 0.5–2% of bladder malignancies, and arises from a remnant of the fetal genitourinary tract. A 46-year-old woman presented with a history of pelvic pain and frequent daytime urination. Ultrasound (US), computed tomography (CT), and magnetic resonance (MR) demonstrated a supravesical heterogeneous mass with calcifications. The patient underwent a partial cystectomy with en-bloc resection of the mass and histopathological examination revealed the diagnosis of urachal adenocarcinoma. Urachal carcinomas are usually associated with poor prognosis and early diagnosis is fundamental. CT and MR are useful to correctly diagnose and preoperatively staging

  5. [Screening for cutaneous carcinoma].

    Science.gov (United States)

    Beani, J C

    1996-09-01

    Skin carcinoma is the most frequent of all cancers. The main risk factor is represented by solar exposition and, so, individuals with special risk are xeroderma pigmento sum (enzymatic defect of DNA repair), light phototype person, sun-seekers, outdoor-workers and patients treated with high doses of PUVA. X-rays, mineral oils, tar and arsenic are also known skin carcinogens. HPV can also participate to skin carcinogenis alone or associated with UV particularly in immunosupressed sujets. Subjects with predisposition for skin carcinoma can be pointed out and cautioned. Detection of preepitheliomatous lesions is easy; actinic keratosis are the main signs.

  6. Gingival squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Amit Walvekar

    2017-01-01

    Full Text Available Oral squamous cell carcinoma (OSCC is the most common epithelial malignancy affecting the oral cavity. The most common sites for the development are lateral surface of tongue and floor of mouth; the least common sites are soft palate, gingiva, and buccal mucosa. Gingival squamous cell carcinoma can mimic a multitude of oral lesions and enlargements, especially those of inflammatory origin. In addition, predisposing and presenting factors are different from those of other OSCCs. Careful examination as well as routine biopsy are crucial for accurate diagnosis.

  7. Urachal Carcinoma: Imaging Findings

    Directory of Open Access Journals (Sweden)

    Vanessa Monteiro

    2012-02-01

    Full Text Available Urachal carcinoma is a rare neoplasm, which accounts for only 0.5–2% of bladder malignancies, and arises from a remnant of the fetal genitourinary tract. A 46-year-old woman presented with a history of pelvic pain and frequent daytime urination. Ultrasound (US, computed tomography (CT, and magnetic resonance (MR demonstrated a supravesical heterogeneous mass with calcifications. The patient underwent a partial cystectomy with en-bloc resection of the mass and histopathological examination revealed the diagnosis of urachal adenocarcinoma. Urachal carcinomas are usually associated with poor prognosis and early diagnosis is fundamental. CT and MR are useful to correctly diagnose and preoperatively staging.

  8. Carcinoma fusocelular de cavidad oral: Revisión de 9 casos Spindle cell carcinoma of the oral cavity: A review of 9 cases

    Directory of Open Access Journals (Sweden)

    G. Gómez Oliveira

    2006-02-01

    Full Text Available El carcinoma fusocelular es una variedad maligna y poco frecuente del carcinoma de células escamosas. Es una tumoración constituida por una doble proliferación celular: una sarcomatosa de células fusocelulares y otra carcinomatosa de células epiteliales. Aunque puede afectar a cualquier parte del organismo, es más frecuente encontrarla en vías aerodigestivas superiores. Afecta con mayor frecuencia a varones entre la 6ª y 7ª décadas de la vida. Tiene un comportamiento agresivo con tendencia a la recurrencia. El alcohol y tabaco han sido identificados como los factores de riesgo más importantes. Su diagnóstico histológico es complicado y muchas veces es necesario recurrir a técnicas de inmunohistoquímica y al uso del microscopio electrónico. En la actualidad, se le atribuye un origen epitelial. El objetivo de este trabajo es presentar una revisión de 9 casos de carcinoma fusocelular localizados en cavidad oral recogidos en nuestro servicio entre los años 1985 a 2004, describiendo su comportamiento clínico y tratando de comprender la patogenia de esta controvertida estirpe tumoral.Spindle cell carcinoma is a malignant and rare variant of squamous cell carcinoma. The histological pattern is composed of a double cell proliferation: a sarcomatous component made up of spindle-shaped cells and a carcinomatous component made up of epithelial cells. Nearly all the anatomy of the body can be affected by these tumors although the most common location is the upper aerodigestive tract. With regard to sex distribution, it is more frequent in males than in females in their sixth and seventh decades of life. Its behavior is aggressive and it tends to recur after treatment. The most important risk factors are alcohol and tobacco. The histological diagnosis is complicated, so immunohistochemical techniques and the use of electron microscopy are usually necessary. Nowadays, its epithelial origin is accepted. The aim of this article is to report a

  9. [Radiotherapy of oropharynx carcinoma].

    Science.gov (United States)

    Servagi Vernat, S; Tochet, F; Vieillevigne, L; Pointreau, Y; Maingon, P; Giraud, P

    2016-09-01

    Indication, doses, technique of radiotherapy and concomitant chemotherapy for oropharynx carcinoma are presented. The recommendations for delineation of the target volumes and organs at risk are detailed. Copyright © 2016 Société française de radiothérapie oncologique (SFRO). Published by Elsevier SAS. All rights reserved.

  10. Nasopharyngeal Carcinoma During Pregnancy

    Directory of Open Access Journals (Sweden)

    Tsung-I Lin

    2007-12-01

    Conclusion: The possibility of rare nasopharyngeal carcinoma should be considered in any pregnant woman with presenting symptoms of persistent headache and abnormal nasal discharge, and a detailed thorough investigation is indicated. Successful pregnancy outcome can be achieved after tailored use of a combination of chemotherapy and radiotherapy.

  11. Intraosseous acinic cell carcinoma

    African Journals Online (AJOL)

    2011-12-17

    Dec 17, 2011 ... Salivary gland tumors are also known to develop within jaw bones, arising within the jaw as a ... Treatment of acinic cell carcinoma in most cases is surgical. High recurrence rates ... Panoramic radiograph [Figure 3] showed a ...

  12. Medullar thyroid carcinoma

    International Nuclear Information System (INIS)

    Abalovich, Marcos; Lowenstein, Alicia; Ortiz, Gustavo; Pusiol, Eduardo

    2006-01-01

    This document details recommendations in medullar carcinoma of thyroids. The screening for pheochromocytoma and hyperparathyroidism must be carried out annually with measurements of urinary catecholamines, ionic calcium and/or parathyroid hormone respectively to the carriers of the corresponding mutations, according to recommendations in this work

  13. Avaliação da divergência nutricional de variedades de cana-de-açúcar (Saccharum spp. Evaluation of the nutritional divergence of the sugarcane (Saccharum spp. varieties

    Directory of Open Access Journals (Sweden)

    José Augusto Gomes Azevêdo

    2003-12-01

    Full Text Available O objetivo do trabalho foi avaliar a divergência nutricional de variedades de cana-de-açúcar, utilizando a análise de componentes principais, visando identificar três variedades representativas dessa divergência. As variedades de cana-de-açúcar (Saccharum spp. avaliadas neste estudo foram: RB855113, RB765418, RB855536, SP79-2233, RB845257, SP80-180, RB855453, RB855336, SP80-1842, SP81-1763, SP80-4445, SP79-1011, RB739359, RB867515 e SP80-3280, colhidas aos 426, 487 e 549 dias após o plantio. As variáveis discriminatórias utilizadas foram fibra em detergente neutro (FDN, hemicelulose, lignina, fração indegradável da FDN e taxa de degradação da fração potencialmente degradável da FDN. Houve diferenças para todas as variáveis estudadas, exceto para a fração indegradável da FDN. A avaliação da divergência nutricional das variedades de cana-de-açúcar baseou-se nos três primeiros componentes principais, explicando 87,8% da variação total. A FDN e a fração indegradável da FDN foram as variáveis de menor importância para explicar a variabilidade nutricional das variedades. A variedade SP80-1842, colhida aos 426 dias após o plantio, e a variedade SP79-1011, colhida aos 549 dias, foram as que apresentaram maior dispersão dos escores nos três primeiros componentes principais, sendo consideradas as mais dissimilares, enquanto a variedade RB845257, colhida aos 487 dias após o plantio, localizou-se em posição intermediária entre ambas. A análise de componentes principais foi também eficiente em selecionar as variedades com diferentes épocas de colheita.The objective of this work was to evaluate the nutritional divergence of the sugarcane varieties, using the principal components analysis, to select three representative varieties of that divergence. The sugarcane varieties (Saccharum spp. evaluated in this study were: RB855113, RB765418, RB855536, SP79-2233, RB845257, SP80-180, RB855453, RB855336, SP80-1842, SP81

  14. Eficiência da colheita mecânica em variedades paulistas de algodeiro Efficiency of mechanical harvesting in São Paulo cotton varieties

    Directory of Open Access Journals (Sweden)

    Luiz Henrique Carvalho

    1984-01-01

    Full Text Available O comportamento das variedades paulistas de algodoeiro 'IAC 17' e 'IAC 18', em face da colheita mecânica, e a possibilidade de melhorá-lo mediante o uso do regulador de crescimento Cycocel, foram estudados em ensaio conduzido em 1978/79 e 1979/80 no município de Leme (SP. Na média dos dois anos, utilizando-se uma colhedeira John Deere 9900, foi colhido cerca de 89% do algodão produzido, o que representa eficiência comparável à obtida em países que adotam predominantemente essa prática. Em condições normais, as perdas foram 7%, porém, em ano adverso, com chuvas freqüentes na época da colheita e longa permanência do algodão aberto no campo, atingiram 16%. A colheita mecânica proporcionou tipos inferiores de algodão em caroço, situando-se entre 1 e 2 pontos, na escala de classificação comercial, a diferença em relação à colheita manual. As perdas foram maiores, cerca de 2%, para a variedade 'IAC 17', tendo a diferença se manifestado tanto em relação ao algodão caído ao solo, quanto ao que persistiu nas plantas, após a colheita. O prejuízo no tipo foi semelhante para as duas variedades, no ano normal, mas consideravelmente maior para a 'IAC 17', no ano desfavorável. O Cycocel, aplicado na base de 50g de princípio ativo por hectare, aumentou a porcentagem de algodão colhido pela máquina, porém, apenas no ano em que as condições climáticas foram adversas. Todavia, mesmo nesse ano, o produto não contribuiu para melhorar o tipo do algodão colhido mecanicamente. Excetuando tendência para queda na resistência, assim mesmo de forma inconsistente, as demais características tecnológicas da fibra não foram afetadas pela colheita mecânica.Adequacy of the cultivated cotton varieties 'IAC 17' and 'IAC 18' for mechanical harvesting and the possibility to improve their performance by using the plant growth regulator Cycocel, were studied at Leme, State of São Paulo, Brazil, in the 1978/79 and 1979/80 crop seasons

  15. Crioconservação de sementes de mamona das variedades nordestina e pernambucana Cryoconservation of nordestina and pernambucana varieties of castor bean seeds

    Directory of Open Access Journals (Sweden)

    Francisco de A. C. Almeida

    2002-01-01

    Full Text Available É grande a importância da mamoneira (Ricinus communis L. para a economia do semi-árido nordestino, que é responsável por 80% da produção nacional, no entanto durante 1970 e 2000, a produção líquida dessa oleaginosa foi reduzida na mesma percentagem. Registrou-se também a existência de aproximadamente 90 tipos diferentes de sementes empregadas no cultivo desta Euforbiaceae. Devido a este problema, o trabalho desenvolvido no Laboratório de Processamento e Armazenamento de Produtos Agrícolas do DEAg/UFPB, objetivou desenvolver técnicas de crioconservação para duas variedades de Ricinus communis, com vistas a uma armazenagem segura e por tempo indefinido. O delineamento experimental utilizado foi o inteiramente casualizado, com os dados obtidos nos 7º e 14º dias depois da semeadura, dispostos em um arranjo fatorial 2 x 3 x 2 x 2 (duas variedades, três períodos de crioconservação, duas temperaturas de crioconservação e dois tipos de acondicionamento com oito repetições de vinte e cinco sementes cada uma. Os dados obtidos foram submetidos à análise de variância e as médias dos fatores qualitativos comparadas pelo teste de Tukey, a 5% de probabilidade. Com os resultados obtidos concluiu-se que: o nível máximo de umidade para a crioconservação das sementes das duas variedades de Ricinus communis (nordestina e pernambucana encontra-se entre 4 e 10% base úmida; os melhores resultados de qualidade fisiológica foram obtidos aos 30 dias da crioconservação, podendo essas sementes serem crioconservadas tanto no vapor (-176 ºC como na imersão (-196 ºC em nitrogênio líquido; o canister de alumínio utilizado para acondicionar as sementes mostrou-se superior ao de PVC.The castor bean (Ricinus communis L. has great importance for the economy of the semi-arid region of the northeast of Brazil, responsible for 80% of the national production, but during 1970 and 2000, the net production of this oil crop was reduced

  16. Metastatic basal cell carcinoma caused by carcinoma misdiagnosed as acne - case report and literature review

    DEFF Research Database (Denmark)

    Aydin, Dogu; Hölmich, Lisbet Rosenkrantz; Jakobsen, Linda Plovmand

    2016-01-01

    Basal cell carcinoma can be misdiagnosed as acne; thus, carcinoma should be considered in treatment-resistant acne. Although rare, neglected basal cell carcinoma increases the risk of metastasis.......Basal cell carcinoma can be misdiagnosed as acne; thus, carcinoma should be considered in treatment-resistant acne. Although rare, neglected basal cell carcinoma increases the risk of metastasis....

  17. Conservação pós-colheita de frutos de goiabeira, variedade Paluma Post-harvest conservation of fruit of guava, var. Paluma

    Directory of Open Access Journals (Sweden)

    Luiz Gonzaga Neto

    1999-01-01

    Full Text Available Objetivando aumentar a vida útil de frutos da goiabeira (Psidium guajava L., variedade Paluma, nos primeiros dezesseis dias pós-colheita, foi realizado, no município de Petrolina, PE, região do Vale do São Francisco, um estudo para determinar o efeito da concentração de cálcio (Ca, do ambiente de armazenamento e do tipo de embalagem, na vida útil da goiaba. Foram estudados dois ambientes de armazenamento (condições naturais e ambiente refrigerado, três concentrações de Ca (0,5, 1,0 e 1,5% e dois tipos de embalagem do fruto (saco de polietileno transparente e saco de papel- manteiga. Doze tratamentos foram testados no delineamento de blocos ao acaso, com três repetições, num arranjo fatorial 3x2x2. Foram determinados os parâmetros: perda de peso e da cor verde da casca do fruto, e o teor de sólidos solúveis totais. Verificou-se que frutos da variedade Paluma colhidos "de vez" (frutos completamente desenvolvidos, mas com a casca verde mantiveram suas características comerciais por até dezesseis dias de armazenamento quando foram embalados em saco de polietileno transparente e sem furo, e armazenado em ambiente refrigerado a 10ºC, e 90% de umidade relativa.The study was undertaken to increase the shelf life of fruits of guava (Psidium guajava L. var. Paluma in the post-harvest period in the São Francisco River Valley (Petrolina, PE, Brazil. Effects of calcium (Ca concentration, storing condition and fruit wrapping material in the shelf life of fruit of guava were studied. Twelve treatments were tested in a randomized complete block design, in a 2 x 3 x2 factorial arrangement, comprising the following variables: two storing conditions (natural temperature and refrigerated, three Ca concentrations (0.5, 1.0 and 1.5% and two fruit wrapping materials (transparent poliethylene bag and impervious paper bag. The following guava parameters were evaluated: weight and peel green color losses and total soluble solids. It was observed

  18. Análises físicas, composição centesimal e nutricional de minimilho (Zea mays, L. orgânico de diferentes variedades

    Directory of Open Access Journals (Sweden)

    A. S. O. D. Lima

    2015-12-01

    Full Text Available Atualmente os produtos orgânicos vêm roubando a cena dos produtos tradicionais, por serem saudáveis, livres de agrotóxicos e por gerarem menor impacto no meio ambiente. O minimilho (Zea mays, L. também conhecido como “babycorn”, uma espiga imatura ainda não fertilizada (espiguetas, é uma hortaliça, produto considerado fino que vem ganhando importância no mercado de conservas no Brasil. Esta pesquisa se propôs avaliar a qualidade de minimilho orgânico in natura de diferentes variedades e determinar a composição centesimal e nutricional.Utilizou-se como metodologias analíticas as determinações de rendimento, peso médio, diâmetro e comprimento das espiguetas, além de pH, sólidos solúveis, acidez  titulável, umidade, cinzas, lipídeos,  proteínas, carboidratos e valor energético total. Com os resultados obtidos concluiu-se que as variedades que apresentaram maior rendimento foram Pipoca (48,75%, Eldorado (42,06%e Branco (40,50%, sendo mais recomendadas para o beneficiamento e que o minimilho se trata de um produto de baixo valor calórico, podendo ser indicado em dietas hipocalóricas.Physical analysis, and nutritional composition centesimal babycorn (Zea mays, L. organic variety of differentAbstract: Currently organic products come stealing the show from traditional products to be healthy, free of pesticides and generate less impact on the environment. The lithe corn (Zea mays L. also known as " babycorn " an immature ear is not fertilized  (spikelets, is a vegetable , thin product concerned that has gained importance in the market preserved in Brazil. This research aims to evaluate the quality of organic fresh baby corn in different varieties and determine the composition and nutritional. Used as analytical methodologies determinations yield , average weight , diameter and length of the spikelets , and pH , soluble solids , titratable acidity, moisture, ash , lipids , proteins , carbohydrates and total energetic

  19. Capítulo IV: caracterización morfo-agronómica de especies y variedades botánicas del genero Lycopersicon

    Directory of Open Access Journals (Sweden)

    Arango Angel Pedro A.

    1994-12-01

    Full Text Available

    En condiciones de invernadero se renovó la semilla de 58 introducciones del género Lycopersicon. En condiciones de campo se evaluaron cerca de 30 plantas de cada una de las introducciones viables. Además, se realizaron 5 cruzamientos, incluyendo los recíprocos, entre cada una de las introducciones viables y las variedades experimentales Chonto-109 y Napoli-1457. De 58 introducciones solo 16 produjeron semilla viable (L. hirsutum-1408, L. glandulusum   1403 y 1404, L. peruvianum-613 y 1409, L. pimpinellifolium-615, L. esculentum-633, L. pennelli- 632, L. esculentum var. ceraciforme- 183, 616. 923, 1140, 1506 Y 1508, L. esculentum varo grandifolium -1217, L. esculentum validum- 1110. Hubo gran variabilidad en emergencia, precocidad, duración de cosecha, cuajamiento de flores, rendimiento y sus componentes, análisis físico-químico de frutos entre las diferentes introducciones. L. peruvianum- 613 y 1409, L. glandulosum- 1403 y 1404 y L. pimpinellifolium 615 presentaron poco ataque de Scrobipalpula absoluta. Las variedades botánicas de L. esculentum presentaron mayores eficiencias de cruzamiento (84.3 % que las especies de Lycopersicon (27.7 %, cuyas eficiencias fueron: L. esculentum (75%, L. pimpinellifolium (50%, L. hirsutum (40%, L. glandulosum (5% y L. peruvianum (2.5%.

    The seeds from 58 introductions of the genus Lycopersicon were multiplied in the glasshouse. Thirty seeding of each introductions producing germinated seed were planted for to observe the characteristics of agronomical interest. Five reciprocal crosses were made with two experimental varieties (Chonto-1091 and Napoli-1457 with the purpose of to study the crossing efficiency of the introductions. From 58 introductions planted on1y 16 produced germinated seeds (L. hirsutum- 1408, L. g1andulosum- 1403 y 1404, L. peruvianum-613 y 1409 L. pimpinellifolium- 615, L. esculentum-633 S. pennelli- 632 L. esculentum var. ceraciforme- 183, 616. 923, 1140, 1506 y 1508 L

  20. Desenvolvimento Inicial de Duas Variedades de Cana-de-açúcar Inoculadas com Bactérias Diazotróficas

    Directory of Open Access Journals (Sweden)

    Valfredo Almeida Chaves

    2015-12-01

    Full Text Available RESUMO A cana-de-açúcar é uma cultura de grande destaque na economia, em razão da produção de açúcar, etanol e energia. Tecnologias que possam contribuir para o aumento da produtividade e qualidade da cultura com mínimos danos ao meio ambiente são necessárias. Objetivou-se avaliar a produção de ácido indol acético de cinco estirpes de bactérias diazotróficas e o efeito da inoculação delas na brotação de duas variedades de cana-de-açúcar, RB867515 e IACSP95-5000. A produção de auxina foi determinada pelo teste colorimétrico, usando o reagente de Salkowski. Para avaliar a germinação, foi conduzido um experimento em casa de vegetação, utilizando-se delineamento experimental em blocos ao acaso com quatro repetições e sete tratamentos: controle não inoculado; inoculação mista com as cinco estirpes e inoculação individual com Gluconacetobacter diazotrophicus (Gd estirpe BR11281T(PAL-5T, Herbaspirillum seropedicae (Hs - BR11335 = HRC54, Herbaspirillum rubrisubalbicans (Hr - BR11504 = HCC103, Burkholderia tropica (Bt - BR11366T = PPe 8 T e Azospirillum amazonense (Aa - BR11145 = CBAMc. As bactérias mais eficientes na produção de auxina foram Hs e Hr, declinando 48 h após o crescimento. Hr, Aa e Bt aumentaram o índice de velocidade de germinação e o número de brotações nas duas variedades. Na var. RB867515, a velocidade de germinação ainda foi positivamente influenciada pela inoculação mista, sendo o mesmo observado pela inoculação de Gd na var. IACSP95-5000.

  1. Características antioxidantes, fisicoquímicas y microbiológicas de jugo fermentado y sin fermentar de tres variedades de pitahaya (Hylocereus spp

    Directory of Open Access Journals (Sweden)

    Carlos Enrique Ochoa-Velasco

    2012-01-01

    Full Text Available Al jugo de pitahaya de tres variedades (roja, rosa y blanca se le evaluó el pH, sólidos solubles totales, acidez titulable, color, compuestos fenólicos, capacidad antioxidante, mientras que al jugo de pitahaya fermentado con Saccharomyces cerevisiae se le evaluaron además el número de bacterias mesófilas aerobias, mohos y levaduras y contenido alcohólico. Los sólidos solubles totales y pH disminuyeron en el jugo fermentado en todas las variedades de pitahaya. El contenido de compuestos fenólicos fue mayor en el jugo de pitahaya roja, seguido de la rosa y la blanca con valores promedios de 45,3, 32,1y 24,6 mg de ácido gálico/100 mL de jugo, respectivamente. Por ende, la capacidad antioxidante fue superior en el jugo de pitahaya roja (160,84 mg de Trolox/100 mL de jugo. La fermentación del jugo de pitahaya incrementó el contenido de compuestos fenólicos (variando de 45,31 a 51,38 mg de ácido gálico/100 mL de jugo, en pitahaya roja, aunque disminuyó la capacidad antioxidante (variando de 124,51 a 82,96 mg de Trolox/100 mL de jugo, en pitahaya rosa. El contenido de alcohol de los jugos fermentados fue entre 2,9 y 3,9 % (v/v. Al final de la fermentación la carga máxima de mohos y levaduras (1580 UFC/mL la presentó el jugo fermentado de pitahaya blanca. Sin embargo, después de la pasteurización el crecimiento microbiano en todos los tratamientos fue menor a 10 UFC/mL. La elaboración de subproductos como el jugo fermentado es una alternativa viable para la comercialización de productos derivados de la pitahaya.

  2. Carcinoma mucoepidermóide Mucoepidermoid carcinoma

    Directory of Open Access Journals (Sweden)

    CRISTIANO FEIJÓ ANDRADE

    2002-11-01

    Full Text Available O carcinoma mucoepidermóide é uma neoplasia infreqüente da árvore traqueobrônquica e de etiologia ainda indeterminada. Sua localização endobrônquica preferencial freqüentemente causa sintomas respiratórios obstrutivos e pneumopatias de resolução lenta. Normalmente, são tumores de crescimento lento, mas que podem apresentar comportamento agressivo, com invasão local e metástases para linfonodos, dependendo das suas características histopatológicas. O tratamento de eleição é o cirúrgico, com ressecção completa, seja através de lobectomia ou broncotomia e broncoplastia. O prognóstico dependerá do grau de diferenciação celular desses tumores. Relata-se um caso dessa rara neoplasia descrevendo suas características clínicas, radiológicas e o tratamento cirúrgico.Mucoepidermoid carcinoma is an uncommon neoplasm of the tracheobronchial tree, of unknown etiology. Its preferred endobronchial location often results in respiratory symptoms such as obstruction of the airways and lung diseases of slow recovery. They usually are slow growing tumors although they may present an aggressive behavior with local invasion and lymph node metastases depending on their histopathologic characteristics. The mainstay therapy is complete surgical resection either by means of lobectomy or by lung sparing procedures such as bronchotomy and bronchoplasty. Prognosis depends upon the degree of cellular differentiation of the tumors. The authors report a case of this rare neoplasia and describe the clinical and radiographic characteristics, and the surgical treatment.

  3. Growth dynamics of two bean varieties (Phaseolus vulgaris L.. l. Growth analysis by fixed periods Dinámica de crecimiento de dos variedades de frijol (phaseolus vulgaris L. l. análisis de crecimiento por periodos fijos

    Directory of Open Access Journals (Sweden)

    Maldonado Gustavo

    1993-12-01

    frijol
    (P. vulgarís, L. comprende una serie de etapas sin las cuales no ocurrirla la formacion de frutos y en la cual el aumento de materia seca depende del comportamiento fisiológico y del hábito de crecimiento. El presente estudio evaluó el proceso de crecimiento conjuntamente con estos factores, con el propósito de establecer la diferencia en comportamiento y la
    relación entre el hábito y los índices de crecimiento en las variedades de frijol "ICA-Cerinza" de habito de crecimiento determinado e "ICA-Tundama" de habito de crecimiento indeterminado. Las variedades fueron sembradas en parcelas de 40,5 m2 y en hileras a 0,50 x 0,12 m. en un diseño de bloques completos al azar con cuatro repeticiones, en las
    cuales se tomaron muestras de tres plantas cada siete dias, a partir de los 15 y hasta los 78 dias después de emergencia. Se evaluó el peso total, el peso seco de los tallos, el peso seco de las hojas y el área foliar. A partir de éstos, se calcularon la tasa relativa de crecimiento (TRC, la tasa de asimilación neta (TAN, la relación de área foliar (RAF, la
    relación de peso foliar (RPF y el área foliar especifica
    (AFE. En las evaluaciones realizadas a los 15, 71 y 78 dias, el análisis de crecimiento por el método clásico, sólo, permitió determinar diferencias en materia seca total, de tallos, de hojas y en área foliar. Resultados similares se hallaron al analizarlos indices. La TRC fue ligeramente más alta en la variedad Cerinza que en la variedad Tundama, sin embargo,
    los valores por evaluación no fueron significativamente
    diferentes entre las dos variedades, a excepción de
    los obtenidos a los 78 D.D.E.. La TAN tuvo un comportamiento similar a la TRC y estas dos variables se correlacionaron positiva y significativamente. La RAF mostró una tendencia decreciente de tipo lineal en la variedad Cerinza, mientras que en la variedad Tundama fue de tipo cuadratico, con valores altos en las primeras y últimas

  4. Gut-associated Lymphoid Tissue (GALT) Carcinoma or Dome Carcinoma?

    Science.gov (United States)

    Rubio, Carlos A; Schmidt, Peter T

    2016-10-01

    The vast majority of colorectal carcinomas (CRCs) evolve from mucosa not associated to lymphoid tissues aggregates via the adenoma-carcinoma sequence or via the serrated pathway. Rarely CRCs evolve from gut mucosa associated to lymphoid tissue (GALT). Based on the presence of a circumscribed elevation in the colorectal mucosa, GALT carcinomas are also referred to as dome carcinomas (DC). Descriptions of the surface mucosa covering 21 GALT-CRCs appearing in pathological reports were reviewed. Three of the 21 GALT-CRCs fulfilled the criteria of dome carcinoma. Of the remaining 18 GALT-CRCs, nine were described as polypoid lesions, five as plaque-like lesions, two as sessile elevated lesions or mass, one as ulcerated and one as histological finding. Hence, only 14.3% (n=3) of the 21 GALT-CRCs displayed a dome configuration, whereas the majority, 85.7% (n=18), exhibited structures other than dome shapes at gross or at histologic examination. It becomes apparent that by using "dome" in addressing carcinomas in the colorectal mucosa, many cases of GALT carcinomas might be overlooked. Another drawback of using the "dome" nomenclature is that dome-like outlines may be detected in small metastatic tumors in the submucosa or in small colorectal carcinomas not arising from GALT mucosa. Instead, by using "GALT carcinoma", that is the histologic diagnosis in addressing these neoplasias, all cases of GALT-CRCs will be included. Copyright© 2016 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved.

  5. Oblimersen in Treating Patients With Merkel Cell Carcinoma

    Science.gov (United States)

    2013-06-03

    Recurrent Neuroendocrine Carcinoma of the Skin; Stage I Neuroendocrine Carcinoma of the Skin; Stage II Neuroendocrine Carcinoma of the Skin; Stage III Neuroendocrine Carcinoma of the Skin; Stage IV Neuroendocrine Carcinoma of the Skin

  6. Imaging of cervical carcinomas

    International Nuclear Information System (INIS)

    Soyer, P.; Michel, G.; Masselot, J.

    1990-01-01

    Recently, magnetic resonance imaging (MRI) and transrectal or transvaginal ultrasound (TRUS, TVUS) had an important place in imaging techniques of cervical carcinomas and raise the question of modifying the imaging strategies. For the diagnosis of primitive tumor, those techniques cannot take the place of clinical examination and gross examination. In the assessment of parametrial involvement, TRUS which has better accuracy than clinical examination, and MRI which is considered as the most accurate technique, have an important role to play. In the follow-up and the detection of recurrences, MRI is actually considered as the best imaging technique. The authors, according to recent data in literature and their own experience, present basic concepts of imaging strategies for staging and follow-up of cervical carcinomas [fr

  7. Cytology of treated cervical carcinoma

    International Nuclear Information System (INIS)

    Shibata, Hideo

    1982-01-01

    The vaginal smear specimens of the patients who received operative therapy, irradiation or chemotherapy for cervical carcinoma were examined. Long-term follow-up vaginal cytology following treatment of cervical carcinoma is effective for the detection of local recurrence in an early stage. Serial cytology is also useful in evaluation of the effects of irradiation and chemotherapy for cervical carcinoma. Radiosensitive and prognostic significance of vaginal smears before and after radiation therapy was discussed. (author)

  8. Carcinoma-associated antigens

    International Nuclear Information System (INIS)

    Bartorelli, A.; Accinni, R.

    1981-01-01

    This invention relates to novel antigens associated with breast carcinoma, anti-sera specific to said antigens, 125 I-labeled forms of said antigens and methods of detecting said antigens in serum or plasma. The invention also relates to a diagnostic kit containing standardised antigens or antisera or marked forms thereof for the detection of said antigens in human blood, serum or plasma. (author)

  9. Carcinoma in a fibroadenoma.

    Directory of Open Access Journals (Sweden)

    Sarela A

    1995-01-01

    Full Text Available A carcinoma arising within a fibroadenoma is an unusual occurrence, with only a little over 100 reported cases. The purpose of this report is to increase the awareness of this entity and to discourage the practice of rendering a diagnosis on gross examination of the tumor. We are reporting a case with two distinct primary tumors within the same breast, one of which was arising within the fibroadenoma. Only two such cases have been previously reported.

  10. Differentiated nasosinusal epidermoid carcinoma

    International Nuclear Information System (INIS)

    Palomo Luna, Jorge; Bestard Hartman, Isel de la Caridad; Fe Soca, Andres Manuel de la

    2012-01-01

    Two case reports of young patients, who were treated in the Otolaryngology Department from 'Dr. Joaquin Castillo Duany' Teaching Clinical Surgical Hospital in Santiago de Cuba are presented. One of the cases presented nasal obstruction, rhinorrhoea and facial pain, for 7 months; the other one presented an increase of volume in the right ocular globe. In both, the results of the biopsy confirmed the diagnosis of differentiated nasosinusal epidermoid carcinoma

  11. Essential oil composition of fruit colour varieties of Eugenia brasiliensis Lam. Composição dos óleos essenciais de variedades de coloração de frutos de Eugenia brasiliensis Lam.

    Directory of Open Access Journals (Sweden)

    Paulo Roberto H. Moreno

    2007-08-01

    Full Text Available Eugenia brasiliensis Lam. is a variable species concerning fruit colour, with three recognized varieties. However, the definition of varieties is not easy for Myrtaceae species and not widely accepted. Two fruit colour varieties (purple and yellow of E. brasiliensis had their essential oil composition analysed in order to give support to the existence of varieties for this species. Although, the major components in the leaf oil are the same monoterpenes for both varieties, alpha-pinene, beta-pinene and 1,8-cineol, the purple fruit variety accumulates more oxygenated sesquiterpenes (33.9% than the one with yellow fruits (3.8%. The major differences occurred in purple fruits that present as major components caryophyllene oxide (22.2% and alpha-cadinol (10.4%, not found in the leaf oil, and the yellow fruit oil presented a similar composition as observed for the leaves. These fruit colour varieties of E. brasilensis can be considered as two distinct chemotypes, since the sesquiterpene pathway is more operant in the purple variety than in the yellow one, in which monoterpenes are mainly accumulated.A espécie Eugenia brasiliensis Lam. apresenta a coloração dos frutos variável, sendo reconhecidas três variedades. Entretanto, a definição de variedades não é fácil para espécies de Myrtaceae e também não é amplamente aceita. Duas variedades de Eugenia brasiliensis, baseado na cor dos frutos (roxos e amarelos, tiveram a composição de seus óleos essenciais analisadas com a finalidade de obter indícios de variedade botânica para esta espécie. Embora, os componentes principais nos óleos das folhas fossem os mesmos monoterpenos para ambas as variedades, alfa-pineno, beta-pineno e 1,8-cineol, a variedade com frutos roxos acumulou maior quantidade de sesquiterpenos oxigenados (33,9% do que aquela com frutos amarelos (3,8%. As diferenças principais ocorreram nos frutos roxos que apresentaram como componente principal o óxido de cariofileno

  12. Morfología de la flor y de la semilla de papaya (Carica papaya L.: variedad Maradol e híbrido Tainung-1

    Directory of Open Access Journals (Sweden)

    Gil Arlette Ivonne

    2005-12-01

    Full Text Available

    Con el objetivo de analizar la morfología de la flor y de la semilla de papaya (Carica papaya L. de la variedad ‘Maradol’ y el híbrido ‘Tainung-1’, se recolectó el material vegetal en dos plantaciones y se llevaron al laboratorio de Fisiología de Cultivos, Facultad de Agronomía, Universidad Nacional de Colombia, Bogotá, con el fin de realizar las descripciones correspondientes de los tres tipos de flores (femeninas, hermafroditas y estaminadas y de la semilla, sus características externas (forma, tamaño, hilo, micrópilo, funículo, rafe y cubierta seminal e internas (cubierta seminal, endospermo y embrión. Se concluyó principalmente que a nivel morfológico las flores y semillas de los dos materiales evaluados mostraron características similares, por tanto, las descripciones dadas en este trabajo son generales para ambos.

  13. "¡Políticos de guante blanco!": La variedad de las transgresiones electorales en el Caribe colombiano a principios del siglo XX

    Directory of Open Access Journals (Sweden)

    Jaime Álvarez Llanos

    2010-01-01

    Full Text Available Este artículo explica algunas tendencias en los comportamientos electorales de los dirigentes, activistas y electores de la región Caribe colombiana a principios del siglo XX, a partir de 1905 y hasta 1930. Se trata de identificar, constatar y tipificar la frecuencia y la variedad de de prácticas que alteraban las leyes electorales y denotaban la ausencia de una cultura política democrática, incidiendo de manera determinante en los resultados de los procesos electorales. El escenario estudiado corresponde a localidades que conformaban la región y el período abordado atañe a las tres primeras décadas del siglo pasado. Además de las fuentes secundarias, se recurrió a fuentes primarias básicas, como la prensa local de la época y los telegramas sobre asuntos electorales que enviaban los actores políticos de la región al Ministerio de Gobierno y que reposan en el Archivo General de la Nación. (AGN.

  14. Maduración de los Frutos de las Variedades de Mango Tommy Atkins y Kent, Bajo Temperatura y Humedad Relativa Controladas

    Directory of Open Access Journals (Sweden)

    Lagos Roa Edilberto

    1992-12-01

    Full Text Available La presente investigación se llevó a cabo entre finales del año de 1987 y comienzos del año 1988 en el laboratorio de fisiología vegetal de la Facultad de Agronomía de la Universidad Nacional de Colombia, sede de Bogotá. El objetivo principal del trabajo consistió en determinar algunos índices que permitieran conocer los momentos más adecuados de maduración de los frutos de mango en las variedades Tommy Atkins y Kent. Para el efecto, se midió la tasa de respiración durante la maduración del fruto y simultáneamente se determinaron los contenidos de: azúcares totales, almidón, s6lidos solubles, acidez titulable, pH y características organoléptica, Los resultados permitieron concluir que se pueden emplear como índices de maduración: los contenidos mínimos de almidón y acidez titulable, los altos y estables contenidos de azúcares totales, un pH por encima de 4,8 y también las características organolépticas como coloración, aroma y consistencia.

  15. CT of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, H; Tanaka, T; Sai, H; Kawamoto, S; Morimoto, K [Osaka Univ. (Japan). Faculty of Medicine

    1982-06-01

    CT was investigated in 125 cases of hepatocelluar carcinoma and 47 cases of metastatic hepatic neoplasm. The entire contour of each tumor was traced and the average CT value in the tumor was estimated. As a result, the CT value for hepatocellular carcinoma tended to be higher on plain CT and also after contrast enhancement. The CT findings seen frequently were as follows: capsule in 76 cases (60.8%) and septum in 67 cases (53.6%); tumor thrombus in portal vein in 39 cases (31.2%) and that in inferior vena cava in 3 cases (2.4%); localized enlargement of hepatic bile duct in 24 cases (19.2%). These findings were rarely seen in the cases of metastatic hepatic neoplasm. As a relatively outstanding feature of hepatic metastases, a double contour, like concentric circles or contour lines, with a relatively large inner circle or contour line, was found in 21 cases (44.7%). By paying attention to the change of CT value on contrast enhancement and the characteristic image of each case, hepatocellular carcinoma could be differentiated from metastatic hepatic neoplasm with high probability.

  16. Glottic ansd supraglottic carcinoma

    International Nuclear Information System (INIS)

    Acht, M.J.J. van; Dolsma, W.V.; Hulshof, J.H.; Leer, J.W.H.; Hermans, J.

    1989-01-01

    From 1971 through 1982, 442 patients with laryngeal carcinoma were seen at the Leiden University Hospital. They were treated either with radiotherapy alone, sandwich therapy (pre- and postoperative radiotherapy) or by surgery followed by postoperative irradiation. Three hundred and sixty-six patients with glottic or supraglottic tumours could be analysed with respect to two different treatments, complications of treatment and some prognostic factors. Two endpoints of analysis were used: disease-free interval and survival to cfancer death. In patients with glottic or supraglottic carcinoma, the survival of patients with advanced disease, treated with radiotherapy only, was worse as compared to the survival of the same category of patients who were treated with sandwich therapy (p<0.005). In small supraglottic tumours, the survival with both therapy policies was equal. There was no influence on prognosis of histological differentiation of the tumour. It appeared that interruption of radiotherapy for more tah two days had an adverse effect on survival in patients with glottic carcinoma (p=0.0001). (author). 16 refs.; 4 figs.;

  17. Dynamic CT of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Fujita, Nobuyuki; Shirato, Hiroki; Shinohara, Masahiro; Miyasaka, Kazuo; Morita, Yutaka; Irie, Goro

    1983-03-01

    We performed dynamic CT in 30 cases of hepatocellular carcinoma, and concluded as below. Detecting the stain in the early phase of the dynamic series, it is possible to make a diagnosis of hepatocellular carcinoma. The dynamic CT is effective in a case of small hepatocellular carcinoma in which it is difficult to gain an accurate diagnosis in the routine CT study. The dynamic CT is also effective in the differential diagnosis of hepatic lesions, as other hepatic lesions such as hemangioma and metastatic liver cancer show different patterns compared with hepatocellular carcinoma.

  18. Dynamic CT of hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Fujita, Nobuyuki; Shirato, Hiroki; Shinohara, Masahiro; Miyasaka, Kazuo; Morita, Yutaka; Irie, Goro

    1983-01-01

    We performed dynamic CT in 30 cases of hepatocellular carcinoma, and concluded as below. 1 Decting the stain in the early phase of the dynamic series, it is possible to make a diagnosis of hepatocellular carcinoma. 2 The dinamic CT is effective in a case of small hepatocellular carcinoma in which it is difficult to gain an accurate diagnosis in the routine CT study. 3 The dynamic CT is also effective in the differential diagnosis of hepatic lesions, as other hepatic lesions such as hemangioma and metastatic liver cancer show different patterns compared with hepatocellular carcinoma. (author)

  19. Emerging therapies for thyroid carcinoma.

    LENUS (Irish Health Repository)

    Walsh, S

    2012-02-01

    Thyroid carcinoma is the most commonly diagnosed endocrine malignancy. Its incidence is currently rising worldwide. The discovery of genetic mutations associated with the development of thyroid cancer, such as BRAF and RET, has lead to the development of new drugs which target the pathways which they influence. Despite recent advances, the prognosis of anaplastic thyroid carcinoma is still unfavourable. In this review we look at emerging novel therapies for the treatment of well-differentiated and medullary thyroid carcinoma, and advances and future directions in the management of anaplastic thyroid carcinoma.

  20. Mammary carcinoma diagnostics and therapy

    International Nuclear Information System (INIS)

    Fischer, Uwe; Baum, Friedemann

    2014-01-01

    The book on mammary carcinoma diagnostics and therapy covers the following issues: development, anatomy and physiology of the mammary glands, pathology of benign and malign mammary gland changes, non-imaging diagnostics; mammography; ultrasonic mammography; magnetic resonance tomography of the mammary glands; imaging diagnostics findings; mammary interventions; examination concepts; operative therapy of the mammary carcinoma; chemotherapy of the mammary carcinoma; radio-oncological therapy of the mammary carcinoma; logistics in a medical center for mammary gland diseases; logistics in an interdisciplinary center for mammary diseases; dialogue conduction and psycho-social attendance.

  1. [Solitary hyperfunctioning thyroid gland carcinomas].

    Science.gov (United States)

    Zivaljevic, V; Zivic, R; Diklic, A; Krgovic, K; Kalezic, N; Vekic, B; Stevanovic, D; Paunovic, I

    2011-08-01

    Thyroid gland carcinomas usually appear as afunctional and hypofunctional lesions on thyroid scintigrams, but some rare cases of thyroid carcinoma with scintigraphic hyperfunctional lesions have also been reported. The aim of our retrospective study was to elucidate the frequency of carcinomas in patients operated for solitary hyperfunctional thyroid nodules and to represent their demographic and clinical features. During one decade (1997/2006), 308 patients were operated for solitary hyperfunctional thyroid nodules in the Centre for Endocrine Surgery in Belgrade. Malignancy was revealed in 9 cases (about 3 %) by histopathological examination. In 6 cases papillary microcarcinomas were found adjacent to dominant hyperfunctional adenomas, while in 3 cases (about 1 %) real hyperfunctional carcinomas were confirmed. Follicular carcinoma was diagnosed in 2 cases and papillary carcinoma in one. All 3 patients were preoperatively hyperthyroid. In both patients with follicular carcinoma we performed lobectomies. In the third case we carried out a total thyroidectomy considering the intraoperative frozen section finding of a papillary carcinoma. According to our results the frequency of solitary hyperfunctioning thyroid carcinomas is about 1 %, so that the possibility that a hyperfunctional nodule is malignant should be considered in the treatment of such lesions. © Georg Thieme Verlag KG Stuttgart ˙ New York.

  2. Estudo de diversas variedades de copas sobre diferentes porta-enxertos da mangueira (Mangifera indica L. Study of several varieties of tree crowns on different rootstocks of mango (Mangifera indica L.

    Directory of Open Access Journals (Sweden)

    S. Simão

    1994-12-01

    Full Text Available O objetivo deste trabalho foi verificar a interferência copa x porta-enxerto no desenvolvimento da mangueira. As alturas e os diâmetros das copas foram tomadas uma vez em 1981, quando as 210 plantas atingiram 15 anos de idade. As variedades de copas estudadas foram as seguintes: Extrema, Oliveira Neto, Carlota, Imperial, Pahiri e Bourbon. Os porta-enxertos utilizados foram Espada, Extrema, Olivara Neto, Carlota, Coco, Pahiri e Bourbon. Os dados foram analisados e a comparação das médias foi feita através do teste de Tukey em nível de 5% de probabilidade. O estudo mostrou que as variedades de copa, Olivara Neto, Extrema e Bourbon atingiram uma altura e um diâmetro maior que as demais variedades.The aim of this paper was to investigate the influence of the combination tree crown + rootstock on mango tree performance. The trees were selected according to height and crown diameter, measured once in 1981, using 210 trees, 15 years old at the beginning of the experiment. The Extrema, Espada, Oliveira Neto, Carlota, Bourbon, Coco and Pahiri varieties were used as rootstock and Extrema, Pahiri, Imperial, Oliveira Neto, Cariota e Bourbon were utilized as scions for tree crown development. Data were analysed by classical statistics, comparing means through the Tukey test, at a probability level of 5%. The crowns Oliveira Neto, Extrema e Bourbon showed the highest heights and diametres.

  3. Análise exploratória das características morfológicas e qualitativas de variedades de laranjeiras de mesa da coleção em brejão - PE

    Directory of Open Access Journals (Sweden)

    Renata Cristina Medeiros

    2013-06-01

    Full Text Available Este trabalho teve como objetivo avaliar as características morfológicas e os aspectos físicos, físico-químicos e químicos das plantas e dos frutos de 15 variedades de laranjas cedidas pelo Centro Nacional de Pesquisa de Mandioca e Fruticultura (Embrapa - CNPMF, e plantadas na Estação Experimental do Instituto Agronômico de Pernambuco, Brejão-PE. Foram avaliados: diâmetro do caule acima e abaixo da linha de enxertia e a relação entre eles, diâmetro da copa, altura da planta e volume de copa. Nos frutos, as avaliações consistiram em: formato, coloração do epicarpo, massa do fruto, massa do suco, altura e diâmetro do fruto, espessura do mesocarpo e do endocarpo, número de sementes por fruto e rendimento em suco. O delineamento experimental foi em blocos casualisados, com quatro repetições e uma planta por parcela. Para o aspecto qualitativo dos frutos, utilizou-se o mesmo delineamento, e foram avaliados através de 12 descritores. Apenas seis das variedades de laranjas estudadas estão dentro das exigências do Programa Brasileiro para a Modernização da Horticultura e cinco das variedades de laranjas mostraram-se com maturação diferente das descritas na literatura.

  4. Urinary bladder carcinoma with divergent differentiation featuring small cell carcinoma, sarcomatoid carcinoma, and liposarcomatous component.

    Science.gov (United States)

    Yasui, Mariko; Morikawa, Teppei; Nakagawa, Tohru; Miyakawa, Jimpei; Maeda, Daichi; Homma, Yukio; Fukayama, Masashi

    2016-09-01

    Both small cell carcinoma and sarcomatoid carcinoma of the urinary bladder are highly aggressive tumors, and a concurrence of these tumors is extremely rare. We report a case of urinary bladder cancer with small cell carcinoma as a predominant component, accompanied by sarcomatoid carcinoma and conventional urothelial carcinoma (UC). Although the small cell carcinoma component had resolved on receiving chemoradiotherapy, rapid growth of the residual tumor led to a fatal outcome. A 47-year-old man presented with occasional bladder irritation and had a 2-year history of asymptomatic hematuria. Cystoscopy revealed a huge mass in the urinary bladder, and transurethral resection was performed. Microscopically, small cell carcinoma was detected as the major tumor component. Spindle-shaped sarcomatoid cells were also observed that were intermingled with small cell carcinoma and conventional UC. In addition, a sheet-like growth of the lipoblast-like neoplastic cells was observed focally. Initially, by providing chemoradiotherapy, we achieved a marked tumor regression; however, the tumor rapidly regrew after the completion of chemoradiotherapy, and the patient underwent radical cystectomy. Only conventional UC and sarcomatoid carcinoma were identified in the cystectomy specimen. The patient died of the disease 4 months after cystectomy. Urinary bladder cancer may include a combination of multiple aggressive histologies as in the present case. Because the variation in the tumor components may affect the efficacy of therapy, a correct diagnosis of every tumor component is necessary. Copyright © 2016 Elsevier GmbH. All rights reserved.

  5. Ultrasound manifestation of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, M S; Yoo, H S; Park, C Y; Choi, H J; Moon, Y M; Lee, S I [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    1982-06-15

    With the advent of gray scale ultrasonographic equipment, the parenchymal disease of liver is more easily evaluated. Ultrasonography is a non-invasive technique, different from angiography, and performed without discomfort to patient. And also ultrasonography can be used in assessing the liver in cases showing equivocal scintigraphy and in differentiation of solid and cystic masses, first detected on scintigrams. Therefore, the complementary use of ultrasonography, Tc-99m-sulfur colloid scan and angiography provides better diagnostic accuracy for the detection of hepatocellular carcinoma, and moreover, sequential ultrasonographic studies in the same patient are valuable of following the course of hepatocellular carcinoma and monitoring the effectiveness of therapy for hepatocellular carcinoma. In thirty patients with histologically proven hepatocellular carcinoma, an analysis of ultrasound manifestation is made and the results are as follows; 1. Ultrasound manifestation of hepatocellular carcinoma by gray scale showed four different sonographic patterns including discrete echo free, discrete echogenic, ill defined echogenic and mixed patterns. 2. The size of hepatocellular carcinoma by ultrasonographic measurement was larger than 5 cm in diameter in 28 cases. 3. In 7 cases performed with angiography, all echogenicities of hepatocellualr carcinoma were correlated with the findings of vascularity of angiography. 4. In cases combined with liver cirrhosis, the sonographic pattern of hepatocellular carcinoma appeared to be discrete or ill defined echogenic patterns.

  6. Vitronectin in human breast carcinomas

    DEFF Research Database (Denmark)

    Aaboe, Mads; Offersen, Birgitte Vrou; Christensen, Anni

    2003-01-01

    We have analysed the occurrence of the extracellular glycoprotein vitronectin in carcinomas and normal tissue of human breast. Immunohistochemical analysis of carcinomas revealed a strong vitronectin accumulation in extracellular matrix (ECM) around some cancer cell clusters and in the subendothe......We have analysed the occurrence of the extracellular glycoprotein vitronectin in carcinomas and normal tissue of human breast. Immunohistochemical analysis of carcinomas revealed a strong vitronectin accumulation in extracellular matrix (ECM) around some cancer cell clusters...... and in the subendothelial area of some blood vessels. In normal tissue, vitronectin had a homogeneous periductal occurrence, with local accumulation much lower than that in the carcinomas. Using a new solid phase radioligand assay, the vitronectin concentrations of extracts of carcinomas and normal breast tissue were...... is not synthesised locally in breast tissue but derived by leakage from vessels, followed by extracellular accumulation in patterns distinctly different in carcinomas and normal tissue. The observation of a high vitronectin content in the carcinomas and its localisation in the tissue contributes to the clarification...

  7. Ultrasound manifestation of hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Hwang, M. S.; Yoo, H. S.; Park, C. Y.; Choi, H. J.; Moon, Y. M.; Lee, S. I.

    1982-01-01

    With the advent of gray scale ultrasonographic equipment, the parenchymal disease of liver is more easily evaluated. Ultrasonography is a non-invasive technique, different from angiography, and performed without discomfort to patient. And also ultrasonography can be used in assessing the liver in cases showing equivocal scintigraphy and in differentiation of solid and cystic masses, first detected on scintigrams. Therefore, the complementary use of ultrasonography, Tc-99m-sulfur colloid scan and angiography provides better diagnostic accuracy for the detection of hepatocellular carcinoma, and moreover, sequential ultrasonographic studies in the same patient are valuable of following the course of hepatocellular carcinoma and monitoring the effectiveness of therapy for hepatocellular carcinoma. In thirty patients with histologically proven hepatocellular carcinoma, an analysis of ultrasound manifestation is made and the results are as follows; 1. Ultrasound manifestation of hepatocellular carcinoma by gray scale showed four different sonographic patterns including discrete echo free, discrete echogenic, ill defined echogenic and mixed patterns. 2. The size of hepatocellular carcinoma by ultrasonographic measurement was larger than 5 cm in diameter in 28 cases. 3. In 7 cases performed with angiography, all echogenicities of hepatocellualr carcinoma were correlated with the findings of vascularity of angiography. 4. In cases combined with liver cirrhosis, the sonographic pattern of hepatocellular carcinoma appeared to be discrete or ill defined echogenic patterns

  8. Viral hepatitis and hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Juei-Low, Sung [ed.; National Taiwan University College of Medicine, Taipei (Republic of China Taiwan). Department of Internal Medicine; Ding-Shinn, Chen [ed.; National Taiwan University College of Medicine, Taipei (Republic of China Taiwan). Hepatitis Research Center National Taiwan University College of Medicine, Taipei (Republic of China Taiwan). Graduate Institute of Clinical Medicine

    1990-01-01

    Two papers in this volume are in INIS scope, respectively dealing with MRI in the study of viral hepatitis and hepatocellular carcinoma, and The use of {sup 131}I-labeled Lipidol in the diagnosis of hepato-cellular carcinoma. (H.W.). refs.; figs.; tabs.

  9. Viral hepatitis and hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Sung Juei-Low; Chen Ding-Shinn

    1990-01-01

    Two papers in this volume are in INIS scope, respectively dealing with MRI in the study of viral hepatitis and hepatocellular carcinoma, and The use of 131 I-labeled Lipidol in the diagnosis of hepato-cellular carcinoma. (H.W.). refs.; figs.; tabs

  10. Maxillary sinus carcinomas

    International Nuclear Information System (INIS)

    Jiang, G.L.; Ang, K.K.; Peters, L.J.; Wendt, C.D.; Oswald, M.J.; Goepfert, H.

    1991-01-01

    Between 1969 and 1985, 73 patients with maxillary sinus cancers underwent surgical excision and postoperative radiotherapy. The clinical stage distribution by the AJC system was 3T 1 , 16T 2 , 32T 3 and 22 T 4 . Six patients had palpable lymphadenopathy at diagnosis. Surgery for the primary tumor consisted of partial or radical maxillectomy, and if disease stage indicated it, ipsilateral orbital exenteration. This was followed by radiation treatment delivered through a wedge-pair or three-field technique. All but 3 patients received 50-60 Gy in 2 Gy fractions to an isodose line defining the target volume. Elective neck irradiation (ENI) was nor routinely given. Clinically involved nodes were treated with definitive radiotherapy (5 patients) or combined treatment (1 patient). Forty-five patients had no evidence of disease at the last follow-up. The 5-year relapse-free survival for the whole group was 51 percent. The overall local control rate was 78 percent, Patients with larger tumors, particularly if they also had histological signs of nerve invasion, had a higher recurrence rate than others. The overall nodal recurrence rate without ENI was 38 percent for squamous and undifferen-tiated carcinoma, and only 5 for adenoid cystic carcinomas. Therefore, the current recommendation is to deliver elective nodal irradiation routinely to patients with squamous or undifferentiated carcinoma, except for those who have T 1 lesions. Treatment complications were vision impairment, brain and bone necrosis, trismus, hearing loss, and pituitary insufficiency. The incidence of major side effects was determined by disease extent and treatment technique. Many technical refinements were introduced in order to limit the dose to normal tissues in an attempt to reduce the complication rate. To what extent such practice influences the outcome will be determined from subsequent analysis. (author). 23 refs.; 2 figs.; 5 tabs

  11. Composición mineral y comparación de raíces reservantes de variedades de batatas (Ipomoea batatas (L. Lam. cultivadas en la isla de La Palma, España

    Directory of Open Access Journals (Sweden)

    Adriana Isabel Montes Hernández

    2010-07-01

    Full Text Available Los minerales Na, K, Ca, Mg, Fe, Cu, Zn y Mn fueron determinados, mediante espectrofotometría de absorción atómica, en raíces de 15 variedades de batatas cultivadas en La Palma (De papa o maní, Parado, Cubana, Cubana de baselo gordo, Cubana de hoja redonda, Blanquita, Saucero o Lanzarotero, Pata de Gallo, Padrón de Seda, Alicantina, Amarillo de Año, De Lanzarote, Matojo, Matojo Fino y Rajada; las 5 primeras de cultivo corto y las 10 restantes de cultivo largo. Se realizó análisis de varianza y prueba de rango múltiple de Duncan a los datos de las variables estudiadas. Se calcularon los coeficientes de correlación de Pearson (r para establecer grados de relación de los minerales entre las variedades; prueba de t de Student para comparar clasificando a las muestras según ciclo de recolección (Temprana y Tardía; análisis factorial para interpretar las relaciones existentes a través factores y análisis discriminantes (de paso a paso con criterio de selección la lambda de Wilks (λ e introduciendo todas las variables validados a través de análisis de validación cruzada. El elemento mineral (en mg/kg presente en mayor concentración en la totalidad de las muestras fue K (2086 ± 418, seguido de Ca (974 ± 486 y Mg (244 ± 70, siendo el Zn el menos presente (1,12 ± 0,61. Las variedades con mayor contenido mineral fueron Alicantina (Ca: 1809 ± 327 y Cu: 2,97 ± 0,23 y Padrón de Seda (Mg: 435 ± 46 y Mn: 3,08 ± 0,49 y la de menor aporte fue Parado (Cu, Mn, Ca, K y Mg. Las variedades Tardías presentaron mayores concentraciones de Cu, Fe, Mn, Ca, K, Mg y menores de Zn y Na en relación a las variedades Tempranas (p < 0,05. Se evidenció que las concentraciones de Cu, Zn y Na presentaron alto número de correlaciones significativas. El análisis factorial permitió deducir que Mg, K y Fe son las variables que permiten caracterizar el sistema perdiendo un mínimo de información total. El porcentaje de casos originales

  12. Composición mineral y comparación de raíces reservantes de variedades de batatas (Ipomoea batatas (L. Lam. cultivadas en la isla de La Palma, España

    Directory of Open Access Journals (Sweden)

    Adriana Isabel Montes Hernández

    2010-06-01

    Full Text Available Los minerales Na, K, Ca, Mg, Fe, Cu, Zn y Mn fueron determinados, mediante espectrofotometría de absorción atómica, en raíces de 15 variedades de batatas cultivadas en La Palma (De papa o maní, Parado, Cubana, Cubana de baselo gordo, Cubana de hoja redonda, Blanquita, Saucero o Lanzarotero, Pata de Gallo, Padrón de Seda, Alicantina, Amarillo de Año, De Lanzarote, Matojo, Matojo Fino y Rajada; las 5 primeras de cultivo corto y las 10 restantes de cultivo largo. Se realizó análisis de varianza y prueba de rango múltiple de Duncan a los datos de las variables estudiadas. Se calcularon los coeficientes de correlación de Pearson (r para establecer grados de relación de los minerales entre las variedades; prueba de t de Student para comparar clasificando a las muestras según ciclo de recolección (Temprana y Tardía; análisis factorial para interpretar las relaciones existentes a través factores y análisis discriminantes (de paso a paso con criterio de selección la lambda de Wilks (λ e introduciendo todas las variables validados a través de análisis de validación cruzada. El elemento mineral (en mg/kg presente en mayor concentración en la totalidad de las muestras fue K (2086 ± 418, seguido de Ca (974 ± 486 y Mg (244 ± 70, siendo el Zn el menos presente (1,12 ± 0,61. Las variedades con mayor contenido mineral fueron Alicantina (Ca: 1809 ± 327 y Cu: 2,97 ± 0,23 y Padrón de Seda (Mg: 435 ± 46 y Mn: 3,08 ± 0,49 y la de menor aporte fue Parado (Cu, Mn, Ca, K y Mg. Las variedades Tardías presentaron mayores concentraciones de Cu, Fe, Mn, Ca, K, Mg y menores de Zn y Na en relación a las variedades Tempranas (p < 0,05. Se evidenció que las concentraciones de Cu, Zn y Na presentaron alto número de correlaciones significativas. El análisis factorial permitió deducir que Mg, K y Fe son las variables que permiten caracterizar el sistema perdiendo un mínimo de información total. El porcentaje de casos originales

  13. Metastatic paediatric colorectal carcinoma.

    LENUS (Irish Health Repository)

    Woods, R

    2012-03-01

    A 16-year-old girl presented to our unit with crampy abdominal pain, change in bowel habit, a subjective impression of weight loss and a single episode of haematochezia. She was found to have a rectosigmoid adenocarcinoma and proceeded to laparoscopic anterior resection, whereupon peritoneal metastases were discovered. She received chemotherapy and is alive and well ten month later with no radiological evidence of disease. Colorectal carcinoma is rare in the paediatric population but is increasing in incidence. Early diagnosis is critical to enable optimal outcomes.

  14. Penis squamous cell carcinoma

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    Leonor Hernández Piñero

    2015-09-01

    Full Text Available Cancer has become a first order health problem worldwide, despite the great diagnostic and therapeutic programs achieved during the last years. This is a clinical case of an 81- year-old patient with personal and social history of promiscuous and unprotected sexual behavior that shows a vegetative lesion in his gland and numerous inguinal adenopathies. Biopsy confirms the diagnosis of squamous cell carcinoma infiltrating the penis, which is a relatively rare pathology which is generally diagnosed belatedly. Partial amputation of the penis was considered to be performed, but there was no consent on behalf of his family. The patient’s general condition was getting worse until he died.

  15. Carcinoma of the thyroid

    International Nuclear Information System (INIS)

    Botta Zunino, L.

    1992-01-01

    Reference is made to the diagnostic evaluation of thyroid nodule, reaffirming the concepts of algorithm study, sensitivity and specificity of diagnostic procedures and cost-effectiveness. Stressing once again the place of cytology and the concept of selecting patients for surgery, surgical tactics in front of the thyroid nodule and the need for probate multidisciplinary study and treatment of this pathology. Briefly discusses the most controversial treatment of differentiated thyroid carcinomas, the sine qua non of the pathologist in the operating room in thyroid surgery and the value of the quantification of nuclear DNA in the diagnosis and prognosis of these tumors (Author) [es

  16. Carcinoma of the penis

    International Nuclear Information System (INIS)

    Modig, H.; Duchek, M.; Sjoedin, J.G.

    1993-01-01

    Forty-four patients with squamous cell carcinoma of the penis stage T1-T2, N0 were either treated surgically (n=19) or with a combination of irradiation and bleomycin (n=25). The overall actuarial survival rate was 80% at 3 years, 77% at 5 years and 60% at 10 years. The result of irradiation treatment combined with bleomycin was in stage N0 equivalent to that of surgical therapy. The non-surgical treatment had the advantage of preserved sexual ability. (orig.)

  17. Caracterización postcosecha y composición química de la batata (Ipomoea batatas (L. Lamb. variedad Topera.

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    Auris Damely García-Méndez

    2016-06-01

    Full Text Available El objetivo de este trabajo fue caracterizar la composición química y calidad postcosecha de la batata variedad Topera proveniente de una producción semi-mecanizada con buenas prácticas agrícolas (BPA. El estudio se realizó en el Laboratorio de Procesamiento Primario de Productos Agrícolas y Bioquímica de Alimentos de la Facultad de Agronomía (FAGRO de la Universidad Central de Venezuela (UCV durante el año 2014. La metodología permitió determinar algunas características físicas, texturales y composición química por los métodos de AOAC (Association of Official Analytical Chemists. Se obtuvieron batatas con un menor coeficiente de variabilidad en el peso (CV: 20,12%, forma (CV: 5,63% y tamaño (CV: 12,80%. Esta respuesta permitió establecer tres categorías de calidad con una baja incidencia de defectos (2,15% y daños físico-mecánicos (30,25%, esta última asociada a la alta resistencia del material (6,25+0,05 kgf/mm. Las batatas presentaron contenidos de azúcares reductores de 9,88%, fibra de 6,19% y proteína de 4,13%; estas características nutricionales sugieren su uso como suplemento alimenticio. La producción semi-mecanizada con la implementación de las técnicas de las BPA, permitió obtener batatas con características de importancia para la agroindustria procesadora de alimentos IV Gama y, a nivel del consumidor, con una calidad física homogénea.

  18. Propriedades físico-químicas do amido de aveia da variedade brasileira IAC 7 Physicochemical properties of IAC 7 oat starch from Brazilian cultivars

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    Melicia Cintia Galdeano

    2009-12-01

    Full Text Available Este estudo caracterizou o amido de aveia da variedade IAC-7 quanto às suas características químicas, reológicas, funcionais e térmicas. O amido de aveia apresentou 1,36% de lipídios, 32,23% de amilose e baixa capacidade retrogradante (9,19% após 30 dias de armazenagem. Embora o amido de aveia tenha apresentado alto teor de amilose, sua baixa retrogradação pode ser devida à presença dos lipídios que, por impedimento estérico, dificultariam a reaproximação das cadeias poliméricas. O comportamento reológico das pastas de amido de aveia foi caracterizado como sendo pseudoplático. A baixa temperatura de gelatinização (64,71 °C do amido de aveia também pode estar relacionada ao maior teor de lipídio deste amido.This study characterized the chemical, rheological, functional and thermal properties of oat starch of IAC-7 variety. The oat starch showed 1.36% of lipids, 32.23% of amylose and low retrogradation capacity (9.19% after 30 days of storage. Although the oat starch has presented high amylose content, its low retrogradation may be due to the presence of lipids that by steric impediment could make it difficult for the polymeric chains to approach. The rheological behavior of oat starch was characterized as pseudoplastic. The low gelatinization temperature (64.71 °C of the starch may be related to its higher lipid content.

  19. Determinación cuantitativa de vitamina C y pigmentos y procesamiento de la papa criolla, variedad yema de huevo (Solanum phureja Juz et Buck

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    Isabel Alvarez G.

    2009-07-01

    Full Text Available Empleando papa pardo'pastusa (Solanum tuberosum como control, se determinó el contenido de Vitamina C total en la papa criolla, variedad Yema de Huevo (Solanum phureja, Juz et Buck y se evaluaron las pérdidas durante la cocción y el freído. Se utilizaron los métodos colorimétrico y densitométrico: el primero dio resultados altos debido a sustancias interferentes; el segundo reportó los siguientes valores: criolla 21 mg/100 g, pardo-pastusa 18 mg/100 g (para muestra fresca. Las pérdidas de Vitamina C de papa criolla con piel fueron durante la cocción {92°C durante 25' de 1 9 % y en el freído (175°C por 3' de 30%. También se analizaron los carotenos y xantofilas dando: carotenos en papa criolla, 1.5 mg/100 g, en pardo-pastusa 0.5 mg/100 g (muestra fresca y xantofilas en papa criolla 0.6 mg/100 g, en pardo-pastusa 0.13 mg/100 g. Se procesó en las siguientes formas no tradicionales: en harinas compuestas aceptadas por ios consumidores, en una sustitución del 2 0% con puré; frita en tajadas con piel y pasabocas de puré. El tiempo de vida fue para frita tres semanas a 16°C V más de una semana a 25°C; para pasabocas cinco semanas y media a 16 C y un mes a 30°C.

  20. Establecimiento y multiplicación in vitro de mora de castilla (Rubus glaucus Benth. variedad sin espinas, mediante ápices meristemáticos

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    Alina Katil Sigarroa-Rieche

    2011-12-01

    Full Text Available Se evaluó una técnica de micropropagación de plantas de mora (Rubus glaucus de la variedad sin espinas, a partir de ápices meristemáticos. En la fase de establecimiento se evaluó un protocolo de desinfección utilizando por 5 min solución de jabón detergente comercial y agua + alcohol 70% por 2 min + hipoclorito 3% con dos tiempos de exposición diferentes: T1 por 5 min y T2 por 10 min. Después de desinfectar las microestacas se extrajeron los ápices meristemáticos y se establecieron in vitro bajo un diseño completamente al azar para evaluar dos medios de cultivo: M1 y M2. A partir de las plántulas desarrolladas se efectuó la multiplicación en los medios de cultivo M1, M3 y M4. Ambos tratamientos de desinfección resultaron efectivos alcanzando 100% de desinfección de los explantes con cada uno de ellos. La siembra de ápices meristemáticos permitió el establecimiento de cultivos asépticos y un adecuado desarrollo de los explantes después de seis semanas de cultivo, con prendimiento de 83.4% para M1 y 66.6% para M2. El análisis de varianza (Anova y la prueba de rangos múltiples mostraron que la multiplicación fue mejor en el medio M1 con una mayor tasa de crecimiento y desarrollo del explante, al obtener coeficientes de multiplicación de 7.5 brotes/plántula y una altura promedio de 1.95 cm.

  1. Establecimiento y multiplicación in vitro de mora de castilla (Rubus glaucus Benth. variedad sin espinas, mediante ápices meristemáticos

    Directory of Open Access Journals (Sweden)

    Sigarroa Rieche Alina Katil

    2011-12-01

    Full Text Available Se evaluó una técnica de micropropagación de plantas de mora (Rubus glaucus de la variedad sin espinas, a partir de ápices meristemáticos. En la fase de establecimiento se evaluó un protocolo de desinfección utilizando por 5 min solución de jabón detergente comercial y agua + alcohol 70% por 2 min + hipoclorito 3% con dos tiempos de exposición diferentes: T1 por 5 min y T2 por 10 min. Después de desinfectar las microestacas se extrajeron los ápices meristemáticos y se establecieron in vitro bajo un diseño completamente al azar para evaluar dos medios de cultivo: M1 y M2. A partir de las plántulas desarrolladas se efectuó la multiplicación en los medios de cultivo M1, M3 y M4. Ambos tratamientos de desinfección resultaron efectivos alcanzando 100% de desinfección de los explantes con cada uno de ellos. La siembra de ápices meristemáticos permitió el establecimiento de cultivos asépticos y un adecuado desarrollo de los explantes después de seis semanas de cultivo, con prendimiento de 83.4% para M1 y 66.6% para M2. El análisis de varianza (Anova y la prueba de rangos múltiples mostraron que la multiplicación fue mejor en el medio M1 con una mayor tasa de crecimiento y desarrollo del explante, al obtener coeficientes de multiplicación de 7.5 brotes/plántula y una altura promedio de 1.95 cm.

  2. Comportamiento agronómico del cultivo del plátano, variedad curare enano en Sandy Bay Costa Caribe Norte de Nicaragua

    Directory of Open Access Journals (Sweden)

    Karen Yaskara Castellón Muller

    2018-02-01

    Full Text Available Se evaluó el comportamiento agronómico en el cultivo del plátano (Musa paradisiaca de la variedad curare enano en la comunidad indígena Waitna tigni, Sandy Bay Norte, Región Autónoma Costa Caribe Norte (RACCN. Es de carácter experimental, con la siembra de 150 cepas de plátano con peso promedio de 3.5 libras, en un área de 30 x 40 m2. Se utilizó el método triangular con una distancia de 3 metros entre planta y planta e hilera. El manejo aplicado en el cultivo fue semi tecnificado, se realizó con el método tradicional empleado por los comunitarios que toman en cuenta la época de siembra, el clima, las fases lunares, y emplean como herramientas azadones y machetes; este proceso se complementó con la aplicación de fertilizantes, fungicida y nematicida con un plan de aplicación y de manejo del cultivo. Los resultados reflejaron que las variables número de hojas, diámetro de tallo, ahijamiento y dedo (largo, ancho y peso, se asemejan a su carta tecnológica. El rendimiento general fue de 38,250 unidades de plátano por hectárea, equivalente a 14,750 kilogramos por hectárea del producto. De manera general el cultivo presentó un buen comportamiento agronómico, fenológico y de adaptabilidad, por lo que se puede implementar un programa de producción con buen manejo y con fines de comercialización nacional e internacional.

  3. Estado, empresariado e variedades de capitalismo no Brasil: política de internacionalização de empresas privadas no governo Lula

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    Danilo Rocha

    2014-09-01

    Full Text Available O artigo analisa a economia política do processo de internacionalização de empresas privadas brasileiras ocorrido durante o governo Lula (2003-2010. A partir de 2005, verificou-se uma expansão do investimento direto brasileiro no exterior, resultado de uma política do governo federal destinada a formar grandes empresas transnacionais capazes de concorrer internacionalmente. Grandes fusões, aquisições e projetos de investimentos no exterior foram financiados por recursos públicos, no âmbito da política industrial operada pelo Banco Nacional de Desenvolvimento Econômico e Social (BNDES, principal banco estatal de fomento ao setor privado no país. Uma característica importante desse movimento foi a concentração em setores nos quais o Brasil já é competitivo, como os intensivos em trabalho e recursos naturais, em contradição com diretrizes originalmente estabelecidas pela própria política industrial do governo Lula, que preconizava o incentivo a indústrias mais intensivas em tecnologia. A partir da análise empírica de casos de internacionalização, argumenta-se que isso ocorreu porque a política pautou-se por demandas de curto prazo de grupos econômicos privados. Utilizando a abordagem institucional das "variedades de capitalismo", conclui-se que a ação do BNDES foi path dependent, no sentido de que dependeu de projetos de viabilidade imediata. Depreende-se do resultado que características institucionais mais gerais da economia brasileira deixam a política industrial do governo federal sujeitas a demandas de curto prazo do setor privado.

  4. Correlações entre compostos fenólicos e atividade antioxidante em casca e polpa de variedades de uva de mesa

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    Angela Vacaro de Souza

    2018-02-01

    Full Text Available Resumo Uvas são consideradas excelentes fontes de compostos fenólicos, quando comparadas a outros vegetais; porém, a grande diversidade entre as cultivares resulta em frutos com diferentes características, tanto de sabor quanto de coloração, o que, certamente, está associado com o conteúdo e o perfil de compostos polifenólicos. Cascas e polpas de amostras de uva no ponto de consumo − tipos “Itália”, “Brasil”, “Rubi”, “Thompson” e “Niágara Rosada” − da região de Campinas e Jundiaí, Estado de São Paulo, foram estudadas com o objetivo de avaliar a atividade antioxidante, a atividade enzimática da peroxidase e da polifenoloxidase e os teores de compostos fenólicos e de ácido ascórbico. A fim de verificar as correlações entre as cascas e polpas das variedades e as características, utilizou-se a Correlação de Pearson, a distância generalizada de Mahalanobis (D2 e, por fim, o agrupamento das diferentes respostas através da análise multivariada. Verificou-se que as cascas das uvas analisadas apresentaram correlação positiva com o conteúdo de compostos fenólicos, a atividade da enzima polifenoloxidase e com o teor de ácido ascórbico, exceto a cultivar “Niágara Rosada”, a qual mostrou maiores valores para estas avaliações. Não houve correlação entre o índice de atividade antioxidante com as demais análises realizadas. As cascas se mostraram uma ótima fonte para estes compostos.

  5. Quantificação de vitamina C e capacidade antioxidante de variedades cítricas Quantification of vitamin C and antioxidant capacity of citrus varieties

    Directory of Open Access Journals (Sweden)

    Meylene Aparecida Luzia Couto

    2010-05-01

    Full Text Available A pesquisa teve por objetivo avaliar a variação do teor de vitamina C em diferentes variedades de laranjas e tangerinas de significado comercial no Brasil, como também medir a capacidade antioxidante destes citros. Foram realizadas análises para avaliação do índice de maturação no suco dos citros, como pH, sólidos solúveis totais e acidez total titulável, e foram determinados os teores de vitamina C e capacidade antioxidante, sendo os dados comparados para verificar as diferenças pelo teste de Tukey (p The objective of this research was to evaluate the variation of vitamin C in different commercial varieties of oranges and tangerines in Brazil and to measure the antioxidant capacity of these citrus. The analyses done for the evaluation of the maturity index of the citrus juices were pH, total soluble solids,and total tritimetric acidity. The antioxidant capacity of vitamin C was also quantified. The data obtained was submitted to statistical analysis using the Tukey test (p < 0.05. The tangerines presented lower levels of vitamin C and lower antioxidant capacity than the oranges. The vitamin C content of the the Murcot tangerine and Natal orange varied between 21.47 and 84.03 mg ascorbic acid .100 mL-1 juice, respectively. The Murcot tangerine exhibited the smallest antioxidant capacity (12.78%, and the sweet orange exhibited the largest antioxidant capacity (66.24%. The conclusion was that the different varieties of oranges and tangerines had a significant variation in the variables analyzed, and that the oranges presented the largest levels of vitamin C and the largest antioxidant capacity.

  6. Evaluación en pérdidas de durazno (Prunus persica variedad rubidoux en la granja experimental Tunguavita Paipa, Boyacá, Colombia

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    Angela Johana Lemus Cerón

    2014-12-01

    Full Text Available Boyacá es un departamento colombiano con una posición geográfica privilegiada, cuya economía se basa principalmente en la producción agropecuaria; el durazno representa un renglón importante en la economía frutícola de Boyacá, sin embargo algunas prácticas culturales y de manejo de cultivos inadecuados han generado pérdidas graduales en el proceso productivo. A fin de comparar la producción en un huerto con extensión de 4 ha, distribuido en tres lotes de durazno variedad Rubidoux, en la granja experimental Tunguavita, municipio de Paipa, Boyacá, Colombia, se seleccionó una muestra aleatoria de 150 árboles frutales, marcados de acuerdo a la distribución del huerto de durazno, los datos recopilados en campo se tomaron con base en la producción y a variables de pérdida como número de frutos totales por árbol, frutos sobremaduros, frutos caídos por accidente, frutos aptos no cosechados, frutos desechados por daño. El análisis mostró que al obtener los 3 intervalos de diferencias en cuanto al límite superior e inferior, la producción es mayor en los lotes 1 y 2 respecto al lote 3, para las variables de pérdida el porcentaje fue del 14%, y los parámetros obtenidos, no presentaron diferencias estadísticas.

  7. Discriminação de variedades de citros em imagens CCD/CBERS-2 Discrimination of citrus varieties using CCD/CBERS-2 satellite imagery

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    Ieda Del'Arco Sanches

    2008-02-01

    Full Text Available O presente trabalho teve o objetivo de avaliar as imagens CCD/CBERS-2 quanto à possibilidade de discriminarem variedades de citros. A área de estudo localiza-se em Itirapina (SP e, para este estudo, foram utilizadas imagens CCD de três datas (30/05/2004, 16/08/2004 e 11/09/2004. Um modelo que integra os elementos componentes da cena citrícola sensoriada é proposto com o objetivo de explicar a variabilidade das respostas das parcelas de citros em imagens orbitais do tipo CCD/CBERS-2. Foram feitas classificações pelos algoritmos Isoseg e Maxver e, de acordo com o índice kappa, concluiu-se que é possível obterem-se exatidões qualificadas como muito boas, sendo que as melhores classificações foram conseguidas com imagens da estação seca.This paper was aimed at evaluating the possibility of discriminating citrus varieties in CCD imageries from CBERS-2 satellite ("China-Brazil Earth Resouces Satellite". The study area is located in Itirapina, São Paulo State. For this study, three CCD images from 2004 were acquired (May 30, August 16, and September 11. In order to acquire a better understanding and for explaining the variability of the spectral behavior of the citrus areas in orbital images (like as the CCD/CBERS-2 images a model that integrates the elements of the citrus scene is proposed and discussed. The images were classified by Isoseg and MaxVer classifiers. According to kappa index, it was possible to obtain classifications qualified as 'very good'. The best results were obtained with the images from the dry season.

  8. Carcinoma of the cervix

    International Nuclear Information System (INIS)

    Eifel, Patricia J.

    1997-01-01

    Purpose: To discuss a variety of technical and clinical issues concerning the management of carcinoma of the uterine cervix. Radiation therapy plays a central role in the management of patients with invasive carcinoma of the uterine cervix. Although survival rates are high for patients with small volume disease, clinicians continue to search for approaches that might improve treatment results for patients who have bulky central disease, evidence of regional dissemination or other factors associated with a high rate of disease recurrence. New technical approaches have contributed to controversy about the best means of optimizing therapeutic ratio. This course will review current approaches to the management of cervical cancer. Technical aspects of intracavitary and external beam treatment will be emphasized. Problems with brachytherapy dose specification will be discussed as will technical factors that may influence the incidence of treatment-related complications. Current understanding of the natural history of disease and of clinical factors that influence the rate of disease recurrence will be reviewed, including the importance of tumor volume, lymph node involvement, and histologic type on natural history and prognosis. The possible role of controversial methods of clinical evaluation such as lymphangiography and surgical staging will be discussed. Some of the more controversial aspects of treatment including the indications of radiation therapy vs. surgical therapy for stage IB disease, the role of extended field therapy, postoperative therapy, adjuvant hysterectomy, and neoadjuvant or concurrent chemotherapy will be discussed. Conclusions from the recent NCI consensus conference on cervical cancer will be reviewed

  9. Histopathology of hepatocellular carcinoma.

    Science.gov (United States)

    Schlageter, Manuel; Terracciano, Luigi Maria; D'Angelo, Salvatore; Sorrentino, Paolo

    2014-11-21

    Hepatocellular carcinoma (HCC) is currently the sixth most common type of cancer with a high mortality rate and an increasing incidence worldwide. Its etiology is usually linked to environmental, dietary or life-style factors. HCC most commonly arises in a cirrhotic liver but interestingly an increasing proportion of HCCs develop in the non-fibrotic or minimal fibrotic liver and a shift in the underlying etiology can be observed. Although this process is yet to be completely understood, this changing scenario also has impact on the material seen by pathologists, presenting them with new diagnostic dilemmas. Histopathologic criteria for diagnosing classical, progressed HCC are well established and known, but with an increase in detection of small and early HCCs due to routine screening programs, the diagnosis of these small lesions in core needle biopsies poses a difficult challenge. These lesions can be far more difficult to distinguish from one another than progressed HCC, which is usually a clear cut hematoxylin and eosin diagnosis. Furthermore lesions thought to derive from progenitor cells have recently been reclassified in the WHO. This review summarizes recent developments and tries to put new HCC biomarkers in context with the WHOs reclassification. Furthermore it also addresses the group of tumors known as combined hepatocellular-cholangiocellular carcinomas.

  10. Ocho Ciclos de Selección Masal Divergente por Mazorcas por Planta en una Variedad Sintética de Maíz

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    Torregroza C. Manuel

    1974-08-01

    Full Text Available Para evaluar la selección masal, como método de mejoramiento genético de maíz, se inició en Tibaitatá a partir de 1956 una serie de proyectos, cuyo objetivo fundamental ha sido el de utilizar dicho método para obtener variedades mejoradas prolíficas y de alta productividad. En 1960 comenzó a aplicarse un sistema divergente de selección masal por mazorcas por planta en Harinoso Mosquera I Sin. 2, una variedad sintética de maíz obtenida del primer ciclo de selección recurrente reciproca, en la cual el otro recurso germoplásmico era Rocamex V 7. Los ocho ciclos de selección analizados en este estudio se obtuvieron en sendos lotes aislados de aproximadamente un cuarto de hectárea. Las siembras se hacían en tal forma que se dejaba una población equivalente a 40 mil plantas por hectárea, así como también se aplicaba una Intensidad de selección del 15 por ciento. No se usó estratificación en el momento de la cosecha. Los ciclos de selección masal divergente obtenidos, se evaluaron en Tibaitatá durante tres años así: de 1968 a 1967, los ciclos 2, 3, 4 y 5; de 1968 a 1970 los ciclos 5, 6, 7 y 8. Para ello, el material se sembró en bloques completos al azar de 16 repeticiones y nueve tratamientos. En todos los experimentos se utilizó la variedad original, como testigo. El tamaño de las parcelas experimentales fue de 2 x 10, para una población máxima de 60 plantas por parcela. En base al promedio de tres años de evaluación en una localidad, el octavo ciclo cie selección para plantas prolíficas mostró una ganancia total del 35 y 39 por ciento para productividad y prolificidad, respectivamente. Cuando estos resultados se expresaron en función de los coeficientes de regresión, los incrementos por ciclo de selección fueron en su orden de 5.93 y 3.43 por ciento. En la selección en sentido opuesto, es decir, en el sistema de escoger plantas con una sola mazorca, el octavo ciclo rindió igual que la variedad

  11. Caracterización de la respuesta de tres variedades de rosa a la infección de Peronospora sparsa Berkeley, bajo condiciones de invernadero

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    Gómez Sandra

    2005-12-01

    ="Subtle Emphasis" />

    Plantas sanas de rosa de las variedades ‘Charlotte’, ‘Classy’ y ‘First Red’ injertadas en los portainjertos ‘Natal Briar’ y ‘Manetti’ y como estacas se inocularon con una suspensión de esporangios de Peronospora sparsa. Posterior a la inoculación, las plantas se mantuvieron por un período de 12 h bajo

  12. Birth characteristics and childhood carcinomas.

    Science.gov (United States)

    Johnson, K J; Carozza, S E; Chow, E J; Fox, E E; Horel, S; McLaughlin, C C; Mueller, B A; Puumala, S E; Reynolds, P; Von Behren, J; Spector, L G

    2011-10-25

    Carcinomas in children are rare and have not been well studied. We conducted a population-based case-control study and examined associations between birth characteristics and childhood carcinomas diagnosed from 28 days to 14 years during 1980-2004 using pooled data from five states (NY, WA, MN, TX, and CA) that linked their birth and cancer registries. The pooled data set contained 57,966 controls and 475 carcinoma cases, including 159 thyroid and 126 malignant melanoma cases. We used unconditional logistic regression to calculate odds ratios (ORs) and 95% confidence intervals (CIs). White compared with 'other' race was positively associated with melanoma (OR=3.22, 95% CI 1.33-8.33). Older maternal age increased the risk for melanoma (OR(per 5-year age increase)=1.20, 95% CI 1.00-1.44), whereas paternal age increased the risk for any carcinoma (OR=1.10(per 5-year age increase), 95% CI 1.01-1.20) and thyroid carcinoma (OR(per 5-year age increase)=1.16, 95% CI 1.01-1.33). Gestational age birth weight, and birth order were not significantly associated with childhood carcinomas. This exploratory study indicates that some birth characteristics including older parental age and low gestational age may be related to childhood carcinoma aetiology.

  13. Primary carcinoma of the duodenum

    International Nuclear Information System (INIS)

    Steidle, B.; Huetter, B.; Ziegler, F.

    1984-01-01

    Primary carcinoma of the duodenum represents about 0.35% of all gastrointestinal carcinomas and is thus a rare disease. The radiological diagnosis of a duodenal origin is made more difficult by the close proximity of the pancreas, biliary system, right kidney and transverse colon. Histologically, duodenal malignant tumours are usually adenocarcinomas. Between 1973 and 1983, eight patients with primary duodenal carcinomas were diagnosed at the University of Tuebingen. Average age of the patients was 67 years. There was no sex difference. Average survival was 3.3 years. (orig.) [de

  14. Expressão antigênica em carcinomas do plexo coróide humano: relato de dois casos

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    M. C. Almeida

    1990-09-01

    Full Text Available Neoplasias provenientes do epitélio de revestimento do plexo coróide são inco-muns, tendo sido descritos 6 padrões morfológicos. O padrão anaplásico, também denominado carcinoma do plexo coróide, é o de menor freqüência e pode dar metastases fora do SNC. A distinção histológica desses tumores, particularmente da variedade anaplásica, com outras neoplasias primárias e metastáticas no SNC pode ser difícil. O uso de técnicas imunocitoquimicas em parafina tem-se mostrado útil no esclarecimento das linhagens tumorais. Os papilomas do plexo coróide têm, no entanto, sido objeto de controvérsia, por sua complexa expressão antigênica. Usando a técnica de imunoperoxidase (sistema avidina-biotina-peroxidase pesquisaram-se, em dois casos da variedade anaplásica, os seguintes marcadores: proteína glial fibrilar ácida (GFAP com anticorpo monoclonal e policlonal; ceratinas de 40-50kDa, ceratinas de 60-70kDa (callus ceratina, enolase neuronal específica (NSE e proteína S-100, com anticorpos monoclonais. Os dois tumores mostraram positividade para NSE, proteína S-100 e ceratina de 40-50kDa; uma das duas neoplasias mostrou diferenciação glial, revelando positividade para GFAP tanto com anticorpo monoclonal quanto policlonal.

  15. Carcinoma triquilemal: relato de caso Trichilemmal carcinoma: case report

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    Miguel Roismann

    2011-10-01

    Full Text Available O carcinoma triquilemal é um tumor raro, que ocorre, geralmente, na pele exposta ao sol, principalmente face, couro cabeludo, pescoço e dorso das mãos, em indivíduos idosos, entre a 4ª e 9ª décadas de vida, sem predilação por sexo. O presente estudo mostra um caso de carcinoma triquilemal, recidivado, de difícil tratamento, em mesma topografia de um carcinoma basocelular tratado previamente com cirurgia e radioterapia.The trichilemmal carcinoma is a rare tumor that usually occurs on sun-exposed skin, especially on the face, scalp, neck and back of hands, mainly in elderly subjects but commonly between the 4th and 9th decades of life. It is not a gender-based illness. This study shows a difficult to treat case of recurrent trichilemmal carcinoma on the same location of a basal-cell carcinoma previously treated with surgery and radiotherapy.

  16. Cutaneous Squamous Cell Carcinoma.

    Science.gov (United States)

    Parekh, Vishwas; Seykora, John T

    2017-09-01

    Cutaneous squamous cell carcinoma (cSCC) is a malignant neoplasm of the skin characterized by an aberrant proliferation of keratinocytes. Cutaneous SCC is the second most common malignancy globally, and usually arises in the chronically sun-damaged skin of elderly white individuals. From a pathologist's perspective, it is important to differentiate cSCC from the benign and reactive squamoproliferative lesions and identify the high-risk features associated with aggressive tumor behavior. In this article, we provide an up-to-date overview of cSCC along with its precursor lesions and important histologic variants, with a particular emphasis on the histopathologic features and molecular pathogenesis. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. [Radiotherapy for nasopharyngeal carcinoma].

    Science.gov (United States)

    Maingon, P; Blanchard, P; Bidault, F; Calmels, L

    2016-09-01

    Nasapharyngeal carcinoma is a rare disease. Oftenly, the diagnostic is made for advanced disease. Localized tumors, T1 or T2 NO observed a good prognosis and are locally controlled in more than 90 % of the cases by radiotherapy alone. The standard treatment of locally advanced disease is combined chemoradiation. A special vigilance of fast decrease of the volume of the pathological lymph nodes, sometimes associated to loss of weight might indicate an adaptive dosimetric revision. The treatment of recurrent disease is of great importance. Surgical indications are limited but should be discussed in multidisciplinary tumor board when possible. Surgical nodal sampling has to be proposed for nodal recurrence as well as reirradiation, which could be indicated according to the technical issues. Copyright © 2016. Published by Elsevier SAS.

  18. PRODUCCIÓN DE JARABES DE FRUCTOSA POR MEDIO DE LA HIDRÓLISIS ENZIMÁTICA DEL ALMIDÓN DE YUCA DE LAS VARIEDADES CORPOICA M TAI-8 Y CORPOICA ORENSE

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    JAIRO G. SALCEDO M.

    2009-01-01

    Full Text Available El presente trabajo tuvo como objetivo la producción y evaluación del rendimiento de jarabes de fructosa a nivel de laboratorio, a partir de jarabes de glucosa obtenidos por medio de hidrólisis enzimática de almidones extraídos de dos variedades de yuca, C. Orense y C. M Tai-8. Para el desarrollo del trabajo, se implementó un diseño experimental de múltiple factor categórico completamente al azar con dos factores, el factor concentración de sustrato en cinco niveles (10, 20, 30, 40 y 50 % p/v de concentración de almidón y el factor variedad de yuca en dos niveles (C. Orense y C. M Tai-8, con tres repeticiones, en un total de 30 unidades experimentales. Inicialmente, en la etapa de licuefacción el jarabe de glucosa fue obtenido por medio de la hidrólisis enzimática del almidón utilizando la enzima Termamyl 120 L, Posteriormente en la etapa de sacarificación se utilizo la enzima AMG 300L, las cuales fueron suministradas por Coldanzimas distribuidor de Novo Nordisk para Colombia. En el desarrollo de estas dos etapas, para una concentración de 30 % p/v, se alcanzaron 95.32 y 94.12 unidades de equivalentes de dextrosa (E.D para C. Orense y C. M Tai-8 respectivamente. Los jarabes de glucosa obtenidos fueron sometidos a un proceso de isomerización por 15 horas en un reactor de lecho fijo, que contenía 10 gr de la enzima glucosa isomeraza inmovilizada Sweetzyme IT de Novozymes, utilizada para convertir la glucosa en fructsa. Durante el desarrollo de todo el proceso, para una concentración de almidón del 30% p/v, se alcanzaron porcentajes de conversión de 71.40% para C. Orense y de 74.93% para C. M Tai-8. Los jarabes obtenidos presentaron concentraciones de fructosa de 21.20 % p/p para la variedad C. Orense y 22.10% p/p para variedad M Tai-8, concentraciones que las ubican dentro de los jarabes de segunda generación. De acuerdo al análisis estadístico realizado a los datos experimentales, se presentan diferencias estadísticas a

  19. Determinación de la Infección de Burkholderia glumae en Semillas de Variedades Comerciales Colombianas de Arroz Determination of the Infeccion of Burkholderia glumae in Comercial Colombian Rice Varieties

    Directory of Open Access Journals (Sweden)

    Nathalia María Vanesa Flórez Zapata

    2011-12-01

    Full Text Available El añublo bacterial de la panícula del arroz, ocasionado por Burkholderia glumae, es una enfermedad cada vez más difundida en Colombia. Por tal motivo es importante implementar un sistema de evaluación de la infección de este agente fitopatógeno en semilla, ya que ésta es una de las posibles fuentes de la enfermedad en campo. Semillas previamente desinfectadas, fueron sumergidas en suspensiones bacterianas y colocadas en cámara húmeda por siete días, luego de los cuales fueron evaluadas. Este sistema fue validado a través del análisis de la severidad de la infección en siete variedades de arroz y tres concentraciones del patógeno. El análisis reveló que las variedades F60, Panorama y F174, presentaron la menor severidad de la infección, aunque estadísticamente similar entre sí; mientras que, las variedades F369 y F733 presentaron niveles de severidad significativamente mayores y similares entre sí. Todas las variedades, con excepción de F60, presentaron diferencias entre las concentraciones del patógeno evaluadas, encontrándose una relación positiva entre concentración del inóculo y la severidad, la cual osciló según la variedad en la que fue estimada. Se concluyó que el modelo de evaluación de la infección fue exitoso dado que permitió encontrar diferencias en la severidad de la infección entre las variedades de arroz y las concentraciones de inóculo.The bacterial panicle blight of rice caused by Burkholderia glumae, is a disease that has gained increasing distribution in Colombia. Therefore it is important to implement an assessment system of infection of this phytopathogen in seeds, since this is one of the possible disease sources on the field. Thus, previously disinfected seeds were dipped in the bacterial suspension and placed in a moist chamber for 7 days, after which they were assessed. This assessment system, was validated by analyzing the infection severity level on seven rice varieties and three

  20. Comportamento sazonal do potencial hídrico e das trocas gasosas de quatro variedades de coqueiro-anão Seasonal performance of water potential and gas exchange in four varietes of dwarf coconut

    Directory of Open Access Journals (Sweden)

    Cíntia Dória Passos

    2005-08-01

    Full Text Available Avaliou-se o curso diurno e sazonal do potencial hídrico e das trocas gasosas foliares do coqueiro-anão (Cocos nucifera L. sob condições de campo, no município de Ilha das Flores-SE. As quatro variedades estudadas (Anão Vermelho de Camarões - AVC, Anão Vermelho de Gramame - AVG, Anão Amarelo de Gramame - AAG e Anão Verde de Jiqui - AveJ reduziram drasticamente a condutância estomática (gs no período seco. Sob estiagem, os valores de transpiração (E e fotossíntese líquida (A foram reduzidos principalmente nas variedades AVG e AVeJ, as quais apresentaram aumento significativo nos valores de eficiência intrínseca do uso da água (A/gs, principalmente o AVeJ. Na estação chuvosa, as trocas gasosas foram condicionadas pela densidade de fluxo de fótons fotossinteticamente ativos (DFFFA e pela gs. No entanto, durante a estação seca, as trocas gasosas foram condicionadas somente pelos valores de gs, sendo os valores de DFFFA não-limitantes desde as primeiras horas do dia. A variedade AVC apresentou pouca eficiência no controle da perda de água pela transpiração sob condições de estresse hídrico, atingindo os valores mais negativos do potencial hídrico foliar, mantendo, todavia, a fotossíntese líquida mais elevada durante o curso diurno. Por outro lado, o AVeJ controlou eficientemente a transpiração e, mesmo com menores valores de A, apresentou a maior razão A/gs que as demais variedades. Em cultivo tecnificado, como ocorre nos perímetros irrigados, a variedade AVC deverá manter um balanço de carbono mais favorável durante todo o ano, apresentando-se como uma variedade muito promissora.Leaf gas exchange and water potential (psil were assessed daily and seasonaly in four varieties of dwarf coconut (Cocos nuficera L. under field conditions: Cameroon Red Dwarf (CRD, Gramame Red Dwarf (GRD, Gramame yellow Dwarf (GYD and Jiqui Green Dwarf (JGD. All varieties showed strong reduction of stomatal conductance (gs values in

  1. Valinia INIA, a New Early Storage Onion Variety for Central South Chile Valinia INIA, una Nueva Variedad de Cebolla de Guarda Precoz para la Zona Centro Sur de Chile

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    María Inés González A

    2012-03-01

    Full Text Available In Central South Chile, storage onion varieties (Allium cepa L. sold domestically usually begin the maturation process in March, which implies that a large proportion of bulbs do not mature adequately and do not resist prolonged storage. This situation led the Quilamapu vegetable program of the Instituto de Investigaciones Agropecuarias INIA to select an early maturing onion variety. This breeding method involved a recurrent selection with free plant crossing that began in 1994 on a population of 2000 plants of the 'Valenciana' commercial variety. Plants were first selected when they reached physiological maturity (tops down before 28 February, and then for shape, size, storage capacity, and single-centered bulbs. The result of the program was 'Valinia INIA', a type of Valenciana onion variety: early maturing, medium-sized bulb, spherical, yellow, and resistant to sprouting during storage. From the 2001-2002 to the 2008-2009 season, variety assays were carried out to compare 'Valinia INIA' with commercial cultivars, i.e., 'Sintética 14', 'Grano de Oro', and 'Valenciana Cobra'. 'Valinia INIA' precocity exceeded the other varieties in all seasons with a mean of 1.5 wk ahead of 'Sintética 14', which is the earliest commercial variety and more than 2 wk ahead of the other two. Its yield is similar to 'Valenciana Cobra' and higher than the other two varieties. Its storage capacity is similar to 'Grano de Oro' and 'Sintética 14', but greater than 'Valenciana Cobra'.En la zona centro sur de Chile es habitual que las variedades de cebolla (Allium cepa L. de guarda que se comercializan en el pais inicien el proceso de maduración preferentemente en marzo, lo que conlleva a que una gran proporción de bulbos no madure adecuadamente, no resistiendo el almacenaje por un tiempo prolongado. Esta situación llevó al programa de hortalizas del Instituto de Investigaciones Agropecuarias INIA Quilamapu a la selección de una variedad de cebolla de madurez

  2. Squamous cell carcinoma - invasive (image)

    Science.gov (United States)

    This irregular red nodule is an invasive squamous cell carcinoma (a form of skin cancer). Initial appearance, shown here, may be very similar to a noncancerous growth called a keratoacanthoma. Squamous cell cancers ...

  3. Renal cell carcinoma in childhood

    International Nuclear Information System (INIS)

    Zanier, J.F.C.; Ramos, C.O.P.; Pereira, A.A.

    1990-01-01

    The authors present five cases of renal cell carcinoma in children, describing its aspects on excretory urography, ultra-sonography and computerized tomography. The clinical, pathological and radiological features are compared with those of the literature. (author)

  4. Radiotherapeutic aspects of bronchiogenic carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Sauer, R.

    1982-03-05

    For inoperable bronchial carcinomas the prognostication is unfavourable still in this era of combined radiological and chemical therapy. Yet the situation is better than it was two years ago. Important international therapeutical investigations have substantially enriched our knowledge. This concerns first of all parvicellular anaplastic carcinomas of the bronchi where, thanks to the combination chemotherapy-radiotherapy-chemotherapy, new possibilities have turned up and the radiotherapy of the primary tumor, the mediastinum and the neurocranium has become firmly established in spite of initial scepticism. As regards non-parvicellular carcinomas, the development is still behind. Post-operative radiotherapy occupies a place in the non-curative resection of bronchial carcinomas. As to the rest, the radiotherapist encounters only palliative indications at the moment excepting controlled clinical studies. It is to be hoped that new combination therapies including hyperthermal measures, radiosensitizer, bleomycin and other chemotherapeuticals will open up now paths. Supraregional therapeutical investigations should be initialled in this sector.

  5. Radiotherapeutic aspects of bronchiogenic carcinoma

    International Nuclear Information System (INIS)

    Sauer, R.

    1982-01-01

    For inoperable bronchial carcinomas the prognostication is unfavourable still in this era of combined radiological and chemical therapy. Yet the situation is better than it was two years ago. Important international therapeutical investigations have substantially enriched our knowledge. This concerns first of all parvicellular anaplastic carcinomas of the bronchi where, thanks to the combination chemotherapy-radiotherapy-chemotherapy, new possibilities have turned up and the radiotherapy of the primary tumor, the mediastinum and the neurocranium has become firmly established in spite of initial scepticism. As regards non-parvicellular carcinomas, the development is still behind. Post-operative radiotherapy occupies a place in the non-curative resection of bronchial carcinomas. As to the rest, the radiotherapist encounters only palliative indications at the moment excepting controlled clinical studies. It is to be hoped that new combination therapies including hyperthermal measures, radiosensitizer, bleomycin and other chemotherapeuticals will open up now paths. Supraregional therapeutical investigations should be initialled in this sector. (orig.) [de

  6. Ionising rays and laryngeal carcinomas

    International Nuclear Information System (INIS)

    Martin, G.; Glanz, H.; Kleinsasser, O.

    1979-01-01

    Review of the literature and report of a new case of laryngeal cancer after irradiation of a benign lesion of the neck. These cases obviously become rare since benign lesions are no longer irradiated. Today the risk of inducing a second carcinoma by a successful irradiation of the first tumor becomes more important. A study of 109 patients, irradiated for laryngeal carcinoma and surviving with no evidence of disease for a period of at least 5 years has been performed. 8 of these patients developed a second primary in the previously irradiated area after 7-15 years. These second carcinomas are not rare if one considers that most patients with laryngeal carcinoma are 60-70 years old and therefore the life expectance on an average is low. These facts should be taken into consideration when deciding between surgical or radiation therapy in younger patients with high life expectance. (orig.) [de

  7. Ultrasonography findings of gastric carcinoma

    International Nuclear Information System (INIS)

    Chung, Chong Ku; Choi, Ji Bai; Ko, Young Tae; Lim, Jae Hoon; Kim, Soon Young

    1985-01-01

    Stomach carcinoma is more common disease in Korea than western countries. The reported ultrasonographic findings of gastric carcinoma were thickening of gastric wall and 'pseudokidney' sign. The author analyzed ultrasonographic findings of 101 cases with gastric carcinoma who were performed ultrasonography and gastroscopy at Kyung Hee University Hospital from October 1982 to October 1985. The results were as followings; 1. Types of gastric carcinoma were consisted with infiltrative type 68 cases, infiltrative type with ulceration 16 cases, polypoid type with ulceration 1 case, infiltrative adn polypoid type 4 cases, limits plastica type 3 cases, ulcerative type 1 case and polypoid type 1 case. 2. Extent of the lesions were in body and antrum 45 cases, entire stomach 18 cases, antrum 18 cases, body 12 cases, body and fundus 6 cases. 3. Ultrasonography was useful in demonstrating the extent of the tumor and the presence of materials elsewhere in abdomen

  8. Ultrasonography findings of gastric carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Chong Ku; Choi, Ji Bai; Ko, Young Tae; Lim, Jae Hoon; Kim, Soon Young [Kyung Hee University Hospital, Seoul (Korea, Republic of)

    1985-12-15

    Stomach carcinoma is more common disease in Korea than western countries. The reported ultrasonographic findings of gastric carcinoma were thickening of gastric wall and 'pseudokidney' sign. The author analyzed ultrasonographic findings of 101 cases with gastric carcinoma who were performed ultrasonography and gastroscopy at Kyung Hee University Hospital from October 1982 to October 1985. The results were as followings; 1. Types of gastric carcinoma were consisted with infiltrative type 68 cases, infiltrative type with ulceration 16 cases, polypoid type with ulceration 1 case, infiltrative adn polypoid type 4 cases, limits plastica type 3 cases, ulcerative type 1 case and polypoid type 1 case. 2. Extent of the lesions were in body and antrum 45 cases, entire stomach 18 cases, antrum 18 cases, body 12 cases, body and fundus 6 cases. 3. Ultrasonography was useful in demonstrating the extent of the tumor and the presence of materials elsewhere in abdomen.

  9. Determinación de razas fisiológicas de Fusariumoxysporumf.sp. Dianthien suelos cultivados y en variedades de clavel en la finca "flores las palmas".

    Directory of Open Access Journals (Sweden)

    Benavides Joaquín L.

    1995-06-01

    Full Text Available

     

    EI problema fitosanitario más Limitante del cultivo del clavel en Colombia es el marchitamiento vascular ocasionado por Fusarium oxysporum f.sp. dianthi con pérdidas económicas muy importantes. EI objetivo del trabajo fue la determinación de las razas fisiológicas del patógeno en la línea "Flores Las Palmas·, localizada en el Municipio de Tocancipá, Cundinamarca, a partir de muestras de plantas de clavel afectadas y de suelo. La investigación consistió en la obtención de 50 aislamientos del hongo a partir de plantas afectadas por la enfermedad y de 50 alistamientos de suelo, los cuales se inocularon en las variedades diferenciales de clavel lbiza, Taiga, Raggio di Sole, Pink Calypso, Niki y San Remo. Los resultados mostraron que 41

    (82% de los 50 aislamientos del hongo obtenidos de plantas enfermas de clavel estándar se clasificaron como raza 2 del patógeno, cinco aislamientos (10% se caracterizaron como de baja patogenicidad, por l0 cual no fue posible determinar la raza a la cual pertenecen y cuatro aislamientos (8% se caracterizaron por no ser patogénicos en plantas de clavel. De los 50 aislamientos del hongo obtenidos a partir de muestras de suelo, solamente uno de ellos (2% Jue patogénico en plantas de clavel y se clasifico como raza 2, siendo los demás aislamientos no patogénicos en plantas de clavel.

  10. EL RENDIMIENTO DE FRUTO POR CLADODIO DEPENDE DE SUS ATRIBUTOS FÍSICOS EN Opuntia ficus–indica (L. Miller VARIEDAD ‘ROJO PELÓN’

    Directory of Open Access Journals (Sweden)

    Ricardo David Valdez-Cepeda

    2014-01-01

    Full Text Available La especie Opuntia ficus–indica (L. Miller crece en un rango amplio de condiciones ambientales. Esto implica una gran variabilidad de rendimiento y maduración de fruto, entre otros aspectos. El objetivo de este trabajo de investigación fue identificar las dependencias del rendimiento de fruto por cladodio con respecto a la materia fresca o seca de cladodio de fructificación, y a la proporción entre longitud y ancho de cladodios de fructificación. La técnica de curva límite y los datos de 60 cladodios de fructificación terminales de un año de edad y sus 480 frutos de O. ficus–indica variedad ‘Rojo Pelón’ de 20 árboles de nopal de 6 años de edad distribuidos a una densidad de 625 plantas·ha –1 fueron usados. Muchos de los cladodios de fructificación con 144 g (mínimo a 964 g (máximo de materia fresca tuvieron rendimientos de fruto de 409 g o más por cladodio; mientras que la mayoría de los cladodios de fructificación con 14.4 g (mínimo a 78.5 g (máximo de materia seca tuvieron rendimientos de fruto de 409 g o más por cladodio. Longitudes de 21.8 cm a 38.4 cm y anchos de cladodio de fructificación de 15.2 cm a 20.8 cm están asociados al 90 % de los vértices correspondientes (los rendimientos de fruto mayores por cladodio. Esos valores pueden ser usados para realizar la poda con el objetivo de asegurar rendimientos grandes con frutos de peso fresco aceptable y tamaño comercial apropiado.

  11. Resposta do silício em condições de estresse salino em feijão caupi variedade Gurgéia

    Directory of Open Access Journals (Sweden)

    Anatercia Ferreira Alves

    2014-12-01

    Full Text Available Conduziu-se um experimento em casa de vegetação do Departamento de Ciência do Solo da Universidade Federal de Lavras com o objetivo de avaliar o efeito do silício na produção de matéria seca na cultura de feijão caupi variedade Gurgéia, submetidas a estresse salino. Adotou-se esquema fatorial em delineamento inteiramente casualizado, com 4 repetições e duas plantas por vaso de 3 L de capacidade, em que o primeiro fator referiu-se aos níveis de  NaCl (0; 25; 50; 100 e 150 mmol.L-1 e o segundo  aos níveis de SiO2 (0 e 50 mg.L-1. As soluções foram renovadas em intervalos de 15 dias e aos 90 dias após a semeadura, as plantas foram colhidas e separadas em parte aérea, vagens e raízes, em seguida foram secas para determinação da produção de matéria seca. Observou-se que a adição de silício na dose de 50 ml.L -1 de solução nutritiva contendo NaCl  diminuiu o teor de matéria seca na parte aérea e raíz, com exceção das vagens. Na ausência de silício, a produção de matéria seca nas raízes e parte aérea foram maiores nas mesmas condições de estresse salino e em baixas concentrações de NaCl. A produção de matéria seca foi estimulada na ausência de silício.

  12. CARACTERIZACIÓN QUÍMICA DE LA PELÍCULA PLATEADA DEL CAFÉ (Coffea arábica EN VARIEDADES COLOMBIA Y CATURRA

    Directory of Open Access Journals (Sweden)

    Diego Sánchez

    2012-10-01

    Full Text Available La película plateada del café es un residuoque se produce en gran volumendurante los procesos de trilla y torrefacciónde este. En la actualidad no se le daningún tipo de uso, a excepción de servircomo abono o combustible, aunque seríade gran utilidad para mejorar el contenidode fibra en alimentos y así facilitar el procesodigestivo, y también como un potencialantioxidante para mejorar su calidad.En el presente estudio se trabajó con dosmuestras de película plateada provenientesde dos variedades de café representativasdel país, Colombia y Caturra. Sehizo el análisis proximal del contenido defibra extraída y la actividad antioxidantede la película plateada, observando que elcontenido de fibra dietaria total es del70 %, correspondiendo un 95,3 % a la fibradietaria insoluble. Además se realizóextracción de los compuestos fenólicos,empleando un sistema metanol:acetona yla cuantificación por el método espectrofotométricode Folin-Ciocalteau, dondese encontró que el 1,2 % de la películacorresponde a estos compuestos. La actividadantioxidante fue determinada porlos métodos de ABTS, FRAP y DPPHencontrándose 3,75, 7,40 y 1,22 mmolde trolox por 100 g de película plateadarespectivamente, resultado comparablecon otros residuos de frutas que presentanun alto potencial antioxidante. La actividadantioxidante relevante de la películaplateada puede ser atribuida a algunosproductos de la reacción de Maillard,como las melanoidinas.Los resultados encontrados sugierenque la película plateada del café presentaun alto potencial, como ingrediente funcionalen la industria alimenticia, con el fin deposiblemente ser adicionada en alimentosde consumo masivo como pan, galletas,carnes o embutidos, en consideración de sualto contenido de fibra dietaria.

  13. Hybrids and varieties of corn inoculated with Herbaspirillum seropedicaeHíbridos e variedades de milho submetidos à inoculação de sementes com Herbaspirillum seropedicae

    Directory of Open Access Journals (Sweden)

    Fabio Fernando de Araujo

    2013-06-01

    Full Text Available The biological nitrogen fixation provided by diazotrophic bacteria may represent an alternative to maize production in more sustainable agricultural systems or low use of technology. In order to evaluate the growth, content and accumulation of nitrogen in corn genotypes, depending on seed inoculation with Herbaspirillum seropedicae experiment was conducted in greenhouse evaluating 35 corn genotypes hybrid single, double, triple and varieties. For seed inoculation was used peat inoculant containing the bacterial strain of H. seropedicae (ZAE 94. Among the commercial corn genotypes studied, only nine hybrids show increase of growth or accumulation of N with the seed inoculation with Herbaspirillum seropedicae (ZAE 94. There is a distinction in response between maize cultivars in terms of biomass production and increase of N content in the shoots.A fixação biológica de nitrogênio proporcionada por bactérias diazotróficas pode representar alternativa para a produção de milho em sistemas agrícolas mais sustentáveis ou de baixa utilização de insumos. Objetivando-se avaliar o crescimento, teor e acúmulo de nitrogênio em genótipos de milho, em função da inoculação das sementes com Herbaspirillum seropedicae, foi conduzido experimento em casa de vegetação avaliando-se 35 genótipos de milho híbridos simples, duplo, triplo e variedades. Para inoculação das sementes foi utilizado inoculante turfoso contendo a estirpe bacteriana de H. seropedicae (ZAE 94. Entre os genótipos comerciais de milho estudados, apenas nove híbridos apresentam ganhos de crescimento ou acúmulo de N com a inoculação das sementes com a estirpe Herbaspirillum seropedicae (ZAE 94. Há distinção de resposta entre cultivares de milho em termos de produção de biomassa e incremento de teor de N na parte aérea das plantas.

  14. El carbón activado y las condiciones de oscuridad en la micropropagación de banana variedad Nanicão

    Directory of Open Access Journals (Sweden)

    Maura Isabel Díaz Lezcano

    2016-07-01

    Full Text Available El objetivo  del trabajo fue evaluar los efectos del carbón activado y las condiciones de oscuridad inicial sobre la propagación in vitro de banana (Musa spp. variedad Nanicão. Fueron empleados 64 ápices  provenientes de hijuelos de 20 - 30 cm. Los tratamientos consistieron en la combinación de dos concentraciones de carbón activado (2 y 3 g/l y dos condiciones de oscuridad inicial (15 y 30 días. El diseño experimental utilizado fue completamente al azar con arreglo factorial 2 x 2 y cuatro  repeticiones. Cada unidad experimental estuvo constituida por cuatro ápices. Las variables evaluadas fueron la tasa media de multiplicación, el porcentaje de supervivencia, oxidación, contaminación y  aclimatización de plántulas. El análisis estadístico consistió en el ANAVA con un nivel de significancia del 5 %. Las medias fueron comparadas a través del test de Tukey al 5 % de probabilidad. Los resultados mostraron que la combinación de 2 g/l de carbón activado y 15 días de oscuridad inicial promovió  el mayor  porcentaje de supervivencia del primer subcultivo que alcanzo 57,30 %.  En la fase de establecimiento el porcentaje de contaminación de los ápices de 39,06 % mientras que en el primer subcultivo  de 22,39 %. La oxidación en la fase de establecimiento fue de 9,37 % y en el primer subcultivo fue de 8,85 %. Se concluye que la  combinación entre la concentración de 2 g/l de carbón activado y 15 días de período de incubación inicial resulta efectiva en el aumento de la supervivencia de los ápices.

  15. Efecto del riego y profundidad de compactación en la producción de soya variedad valluna-5

    Directory of Open Access Journals (Sweden)

    Gallardo B. Carlos A.

    1992-12-01

    Full Text Available

    El experimento se realizó durante el segundo semestre de 1992 en el Centro de Investigaciones del ICA en Palmira, con el objetivo de evaluar el efecto de diferentes profundidades de compactación y niveles de  humedad sobre la producción de soya variedad Valluna-5. En un suelo franco sin deficiencias, ni toxicidad por elementos, se estableció el experimento en un arreglo en franjas divididas, con cuatro repeticiones: las parcelas principales fueron los tres niveles de riego y las subparcelas las profundidades de compactación (5, 15 y 30 cm y testigo. El nivel de humedad afectó el rendimiento, peso de 100 semillas y porcentaje de germinación.; mientras que las profundidades de compactación restringieron más la profundidad de raíces. Los tratamientos no afectaron la altura de planta, área foliar, calidad de semilla, porcentaje de grasas y proteínas y toma de elementos (N, P, K, Ca, Mg, Mn, Zn, Cu, Fe y B.

     At Instituto Colombiano Agropecuario (ICA in Palmira, an experiment was carried out during the second semester of 1992 to evaluate the effect of different compaction depths and moisture levels on the soybean Valluna - 5 variety. On a loam soil without deficiencies nor toxicity of elements, the experiment was stablished under a split plot arrangement with four repetitions where the principal plots were the three irrigation levels and the subplots were the compaction depths (5, 15, 30 cm and  control. The moisture level was more influential than the compaction depth respect to the yield, weight of 100 seeds and germination percentage, while the compaction depth restricted more the root depth. Height of plants, foliar area, seed quality, oil and protein percentages and uptake of elements (N, P, K, Ca, MG, Mn, Zn, Cu, Fe and B were not affected by the treatments.

  16. Caracterización física y química de la nuez y el aceite de nueve variedades de Macadamia integrifolia, M. tetraphylla e híbridos

    Directory of Open Access Journals (Sweden)

    Elia N. Aquino-Bolaños

    2017-01-01

    Full Text Available La especie Macadamia pertenece a la familia Proteacea , y las únicas especies de interés comercial son M. integrifolia y M. tetraphylla . Existe una cr eciente demanda de las nueces debido a su alto valor nutrimental y funcional ya que numerosos estudios han demostrado los efectos protectores de su consumo disminuyendo el riesgo de padecer enfermedades cardiovasculares. Sin embargo, hay una alta variabili dad en la calidad de la nuez y sus productos derivados. Método . En la nuez se registraron los parámetros de color L*, a* y b* y se analizó humedad, azúcares, polifenoles y actividad antioxidante. En el aceite se evaluó humedad, índice de saponificación, ín dice de ácidos grasos libres (AGL e índice de peróxido (IP. Resultados . La humedad de la nuez contrastó entre variedades (22.9 a 40.6 g 100 g - 1 , contrario a los parámetros de color que fueron similares (L*= 60.2 a 68.8. La variedad Victoria por su mayo r contenido de azúcares (57.5 mg glucosa g - 1 podría destinarse para consumo en fresco. UCLA y Huatusco presentaron el mayor contenido de polifenoles (>1.2 mg EAG g - 1 y actividad antioxidante (>7.0 μmol Eq. trolox g - 1 . El aceite presentó baja hum edad (≤0.22% y de AGL; además, el IP fue inferior al límite permitido para aceites vegetales vírgenes (15 m Eq. O 2 kg - 1 . Conclusión . De acuerdo con las características físico - químicas de la nuez y aceite de las distintas variedades se recomienda usos di ferenciados preferentemente en la industria alimentaria.

  17. Cholangiographic evaluation of bile duct carcinoma

    International Nuclear Information System (INIS)

    Nichols, D.A.; MacCarty, R.L.; Gaffey, T.A.

    1983-01-01

    Cholangiograms and clinical histories of 82 patients with biopsy-proved bile duct carcinoma were reviewed. The carcinomas were classified according to morphologic findings and clinical outcome. Ulcerative colitis and antecedent inflammatory disease of the biliary tree, particularly primary sclerosing cholangitis, seem to predispose to the development of bile duct carcinoma. Focal stenotic lesions were the most common morphologic type (62/82). Polypoid carcinomas and diffuse sclerosing carcinomas were less common and of about equal frequency. Prognosis was best for patients with polypoid carcinomas and worst for those with diffuse sclerosing carcinomas. In 69 cases (84%), the tumors involved the intrahepatic or proximal extrahepatic ducts, makin curative resection difficult or impossible. Patients with carcinomas limited to the more distal extrahepatic bile ducts had a longer average survival and a higher probability of surgical cure. Proper management of patients with bile duct carcinoma requires a complete and accurate cholangiographic evaluation of the morphology, location, and extent of the disease

  18. Morphologic Subtypes of Hepatocellular Carcinoma.

    Science.gov (United States)

    Torbenson, Michael S

    2017-06-01

    Hepatocellular carcinomas can be further divided into distinct subtypes that provide important clinical information and biological insights. These subtypes are distinct from growth patterns and are on based on morphologic and molecular findings. There are 12 reasonably well-defined subtypes as well as 6 provisional subtypes, together making up 35% of all hepatocellular carcinomas. These subtypes are discussed, with an emphasis on their definitions and the key morphologic findings. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Radiosensitivity of carcinoma of esophagus

    International Nuclear Information System (INIS)

    Furusawa, Hidenori

    1986-01-01

    With a detailed graphic reconstruction of radiation effects shown in 11 operation materials of carcinoma of esophagus with preoperative irradiation, histologic analysis of the radiosensitivity was made. Residual cancer lesions in 11 operation specimens contained adenocarcinoma elements. Carcinoma of esophagus belonged to mixed carcinoma (syn. metaplastic cancer). Radioresistant nature resulted from the remnant adenocarcinoma elements. Protruded type (3 cases) showed about 60 % of residual cancer after preoperative irradiation of 40 Gy (Lineac or 60 Co.). The residual cancer nests histologically revealed well-differentiated squamous cell carcinoma with a few signet-ring cells, compatible with mucoepidermoid carcinoma. In protruded type, the mixed carcinoma was composed of segmental, disproportioned zonal squamous metaplasia. As its histogenetic origin, a main duct of esophageal gland was suggested. In 9 autopsy cases of esophageal cancer, recurrent lesion within the field of irradiation failed to respond to radiotherapy. In recurrent residual lesions, a higher proportion of adenocarcinoma elements was noticed. Therefore, the cancer part formed by a high rate of metaplasia was markedly responsive to irradiation, whereas increased residue of adenocarcinoma elements was enhanced the radioresistant property. In a middle thoracic esophagus (Im) corresponding to the commonest site of esophageal cancer, the distribution of esohageal glands was in a high density with a constant ratio of density in each age group particularly in male. In age groups with higher incidence of carcinoma of esophagus, esophageal glands markedly increased especially in male, in contrast with the indefinite number and density ratio in female cases. A high density of esophageal glands was noticed in the upper (Iu) and lower (Im) parts of the 2nd physiologic constriction, in proportion to the commonest site of carcinoma of esophagus. (J.P.N.)

  20. Imaging of uterine cervix carcinoma

    International Nuclear Information System (INIS)

    Viala, J.

    2000-01-01

    Imaging of uterine cervix carcinoma has evolved during the last decade. Recent developments in magnetic resonance imaging have expanded the role of MRI in evaluating the pathology of uterine cervix carcinoma. MRI is now the modality of choice for tumor staging, evaluating tumor response to treatment, diagnosing recurrences and for evaluating pregnant patients. MRI images will soon be used to calculate dosimetry for brachytherapy with matching and fusion software. (author)

  1. Multiple oncocytomas and renal carcinoma

    International Nuclear Information System (INIS)

    Velasquez, G.; Glass, T.A.; D'Souza, V.J.; Formanek, A.G.

    1984-01-01

    Renal oncocytoma, although rare, is being diagnosed more frequently, and criteria to differentiate it from other tumors have been described. Multiple oncocytomas have been reported, but an association between multiple oncocytomas and renal carcinoma in the same kidney has not been described. The authors report a case with two oncocytomas and a renal carcinoma in the right kidney as well as a right adrenal adenoma

  2. Carcinoma cutáneo de células de Merkel: Presentación de un caso y revisión de la literatura Cutaneous Merkel cell carcinoma: Case report and literature review

    Directory of Open Access Journals (Sweden)

    J.M. López-Arcas

    2008-02-01

    Full Text Available El carcinoma de células de Merkel, constituye una variedad infrecuente de cáncer cutáneo, de origen neuroendocrino, que clásicamente se describe, como la malignidad cutánea de peor pronóstico. Se origina a partir de las células de Merkel o receptores cutáneos de presión. Presenta un patrón infiltrativo dermo-linfático así como extensión linfática nodal y diseminación hematógena. Presenta numerosas similitudes con el carcinoma pulmonar de células pequeñas, con una sensibilidad intrínseca a la quimio-radioterapia y un gran potencial metastático. Los mejores resultados se obtienen cuando se combina un diagnóstico precoz y el tratamiento combinado con cirugía-radio y quimioterapia. La principal dificultad que presentan estos tumores es la avanzada edad de la población en que se presentan y la localización de los mismos, que en ocasiones limitan las opciones terapéuticas disponibles. Presentamos un caso de carcinoma de células de Merkel facial, tratado con cirugía y radioterapia. Se realiza una revisión de la literatura.Merkel-cell carcinoma is a rare skin cancer of neuroendocrine origin, which has been described as the most aggressive skin malignancy. The tumor arises from the Merkel cells, or skin pressure receptors. It has an infiltrative growth pattern and spreads by the lymphatic vessels and blood. It is similar to small cell lung carcinoma, with an intrinsic sensitivity to chemo-radiotherapy and a remarkable tendency to metastasize. The best treatment outcomes are obtained with early diagnosis and a combination of surgery, chemotherapy, and radiotherapy. A clinical case of Merkel cell carcinoma of the face treated with surgery and radiotherapy is reported and the literature is reviewed

  3. Conservação, diversidade e distribuição de variedades locais de milho e seus parentes silvestres no extremo oeste de Santa Catarina, Sul do Brasil

    OpenAIRE

    Silva, Natália Carolina de Almeida

    2015-01-01

    Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Recursos Genéticos Vegetais, Florianópolis, 2015. As informações sobre a atual diversidade de milho do Brasil são escassas e a maior parte dos estudos tem se destinado a caracterizar e analisar a diversidade conservada ex situ. Pesquisas antecedentes têm demonstrado que a microrregião Extremo Oeste do estado de Santa Catarina possui uma importante riqueza de variedades locai...

  4. Características morfológicas e fitossanitárias de variedades de roseira na etapa de classificação Morphological and fitossanitary characteristics in rose varieties on classification stage

    Directory of Open Access Journals (Sweden)

    Beatriz Meireles Barguil

    2010-07-01

    Full Text Available A qualidade da haste floral de roseira é afetada por inúmeros defeitos, como botão pequeno ou presença de doenças e ferimentos. Este trabalho teve como objetivo avaliar as características morfológicas (comprimento e retidão da haste e do botão floral e fitossanitárias (incidência de míldio, oídio, mofo cinzento e dano causado por lagarta de sete variedades de roseira cultivadas em ambiente protegido. As características foram observadas em três avaliações. O comprimento médio de haste floral variou de 56,1 a 83,3cm, enquanto que o comprimento médio dos botões variou de 4,7 a 5,2cm. Foram observados sintomas de míldio, oídio, mofo cinzento e injúria causada por lagarta nas hastes florais, sendo o oídio o principal problema fitossanitário observado, tendo afetado de 2,9 a 41,3% das hastes, dependendo da variedade. Cerca de 70% das hastes de cada variedade apresentaram características do tipo de C ou D durante a etapa de classificação. Esses resultados reforçam a necessidade da avaliação das diversas características das variedades adquiridas, antes da implementação do cultivo comercial.The quality of the rose's floral stem can be affected by numerous faults as small button or diseases and injuries. This study aimed to evaluate the morphological (length and rightness of stem and rose bud and fitossanitary (downy mildew, powdery mildew, gray mold and caterpillar damage characteristics in seven varieties of rose grown in a greenhouse. The characteristics were analyzed three times. The average length of floral stems ranged from 56.1 to 83.3cm, while the average length of buttons ranged from 4.7 to 5.2cm in the varieties evaluated. Symptoms of downy mildew, powdery mildew, gray mold and damage caused by caterpillar were observed, although powdery mildew were the main problem witch affect from 2,9 to 41,3% of floral stems. About 70% of the stems of all varieties showed characteristics of type C or D during the

  5. Composição químico-bromatológica, fracionamento de carboidratos e cinética da degradação in vitro da fibra de três variedades de cana-de-açúcar (Saccharum spp.

    Directory of Open Access Journals (Sweden)

    Azevêdo José Augusto Gomes

    2003-01-01

    Full Text Available Os objetivos do trabalho foram quantificar a composição químico-bromatológica; determinar as frações de carboidratos; e estimar as variáveis de cinética de degradação dos carboidratos fibrosos (CF e não-fibrosos (CNF de três variedades de cana-de-açúcar divergentes nutricionalmente. As variedades utilizadas foram SP80-1842, SP79-1011 e RB845257. As variedades de ciclo de produção intermediário apresentaram maiores valores de FDN e FDA comparadas à variedade de ciclo precoce. As relações FDN/Pol (polarização do caldo encontradas foram, respectivamente, 2,7; 2,8; e 2,3 para as variedades SP80-1842, RB845257 e SP79-1011. A variedade SP79-1011 apresentou menor fração C e maior fração B2 dos carboidratos (27,8 e 33,3%. Houve diferenças, por meio da técnica gravimétrica, para o tempo de colonização e a degradabilidade efetiva da FDN, com superioridade para a variedade SP79-1011, que apresentou valores respectivos de 7,9 h e 10,3%. Houve efeito apenas para o volume máximo de gás dos CNF, com superioridade das variedades de ciclo intermediário SP79-1011 e RB845257. A variedade SP79-1011 foi a que apresentou melhores características produtivas, composição químico-bromatológica, além de melhores valores das variáveis de cinética de degradação dos carboidratos fibrosos (CF e não-fibrosos (CNF. A técnica de produção de gás apresentou melhores resultados que aqueles apresentados pela técnica gravimétrica.

  6. Avaliação de variedades e híbridos de bananeiras sob irrigação Evaluation of banana varieties and hybrids under irrigation

    Directory of Open Access Journals (Sweden)

    Sérgio Luiz Rodrigues Donato

    2003-08-01

    Full Text Available O Brasil dispõe de um grande número de variedades de bananeira, porém poucas atendem integralmente as exigências relativas à preferência dos consumidores, à produtividade e à resistência a doenças. O objetivo deste trabalho foi avaliar, durante dois ciclos produtivos, em Guanambi (BA, as variedades Nam (AAA, Caipira (AAA, Grande Naine (AAA e Prata Anã (AAB e os híbridos (AAAB PA12-03, FHIA-01, SH3640 e FHIA-18 quanto ao porte, ao peso do cacho, ao número de pencas e de frutos, ao número de folhas no florescimento e na colheita e ao ciclo, no delineamento inteiramente casualizado. A 'Grande Naine' destacou-se nos dois ciclos, sobretudo na produtividade. No primeiro ciclo, a 'Caipira' e os híbridos FHIA-18 e SH3640 obtiveram, após a Grande Naine, os melhores rendimentos no peso do cacho. A Caipira também se destacou no número de frutos e os híbridos SH3640, FHIA-01 e FHIA-18 mostraram um bom desempenho no número de pencas, superando a 'Prata Anã'. O SH3640 apresentou o maior número de folhas na colheita e o PA12-03 foi o genótipo mais baixo e mais precoce. No segundo ciclo, o SH3640 foi um dos destaques quanto ao peso do cacho, ao número de pencas e ao número de folhas no florescimento e na colheita, perdendo apenas para a Grande Naine, nos dois primeiros caracteres, e para a Prata Anã, nos dois últimos. No número de frutos, a Caipira sobressaiu-se, superando a Grande Naine. Como no primeiro ciclo, o PA12-03 foi o genótipo mais precoce, ao lado do FHIA-18, e o segundo mais baixo, ao lado da Nam. O porte e o peso do cacho tiveram um acréscimo, entre os ciclos, nos genótipos avaliados. Os híbridos possuem potencial para ser lançados como cultivares.Brazil has a great number of banana varieties, however a few of them attend completely the exigencies related to the consumers preference requirements, productivity and diseases resistance. The objective of this work was to evaluate banana varieties and hybrids in Guanambi

  7. Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'

    Energy Technology Data Exchange (ETDEWEB)

    Zunich, C.D., E-mail: c.zunich@yahoo.com.ar [Universidad Tecnológica Nacional, Avellaneda (Argentina). Facultad de Ingeniería, Maestria en Tecnologia de Alimentos; Markowski, I., E-mail: imarkowski@unla.edu.ar [Universidad Nacional de Lanús, Buenos Aires (Argentina). Laboratorio de Fisico-Quimica; Narvaiz, Patricia [Comisión Nacional de Energía Atómica, Ezeiza (Argentina). Gerencia de Aplicaciones y tecnologia de Radiaciones, Sector Irradiacion de Alimentos

    2011-07-01

    Gy dose, enough to control American foulbrood, and even at a 20 kGy dose, maximum allowed by the AFC for a minimum dose of 10 kGy, maintained the chemical quality of these five Argentine honey varieties during 10 months at room temperature. (author) [Spanish] Texto completo: 'Loque americana'es una enfermedad que afecta seriamente a las abejas. La miel puede estar contaminada con esporas de la bacteria causante, lo cual restringe su comercialización. La literatura científica informa que estas esporas, resistentes al calor y a agentes químicos, son inactivadas en miel por 10 kilogray (kGy) de energía ionizante, tratamiento que se requiere por ley en Sudáfrica para importar este producto. La inocuidad de los alimentos irradiados está garantizada por la Organización Mundial de la Salud. Considerando que Argentina es un importante productor y exportador de miel, el objetivo de este trabajo fue evaluar el efecto de esta irradiación en su calidad química durante el almacenamiento. Mieles de distintas características, provenientes de 5 regiones del país: Centro, Patagonia, Norte, Litoral, Pampa Húmeda, fueron aportadas por productores congregados en una comisión denominada 'Miel fraccionada', dependiente de la Secretaría de Agricultura, Ganadería, Pesca y Alimentación de la Nación. Quince kilogramos de cada variedad de miel fueron fraccionados en frascos de polipropileno con tapa de polietileno. Se irradiaron muestras en la Planta Semi Industrial de cobalto 60 del Centro Atómico Ezeiza, de actividad aproximada de 500.000 Ci, a dosis de 0, 10 y 20 kGy, medidas con dosímetro de dicromato de plata por el laboratorio Dosimetría de Altas Dosis (CNEA), uniformidad de dosis promedio de 1,1 y velocidad de dosis de 12 kGy/h. Muestras controles e irradiadas fueron almacenadas a temperatura y humedad ambientes durante 10 meses. Se realizaron análisis químicos requeridos por el Código Alimentario Argentino según métodos normatizados: humedad, acidez, diastasas, az

  8. Embarazo y carcinoma de cuello uterino en vidrio esmerilado: reporte de un caso.

    Directory of Open Access Journals (Sweden)

    Mario Nicolás Albani Pérez

    2009-01-01

    Full Text Available En Venezuela, el cáncer de cérvix es la primera causa de muerte por neoplasias en la mujer, con 2.500 defunciones anuales. Puede ser diagnosticado durante el embarazo, e incluso, histopatológicamente expresarse en variedades infrecuentes y agresivas como el carcinoma de cuello uterino en patrón de vidrio esmerilado. Se reporta un caso de gestante de 28 años de edad, multípara, con embarazo de 17 semanas de evolución por ecosonograma transabdominal quien acude al Hospital Universitario "Dr. Luis Razetti", al presentar sangrado transvaginal y dolor en hipogastrio. Ingresa al servicio de Ginecología y Obstetricia con impresión diagnóstica de cáncer de cuello uterino estadio IIIA, y posteriormente el servicio de Anatomía Patológica reporta hallazgo histológico como carcinoma de cuello uterino con patrón celular en vidrio esmerilado, se plantea como medida terapéutica la interrupción del embarazo. Tras debate de equipo de médicos, se decide el progreso del embarazo y hospitalización de la paciente hasta la fecha de cesárea previamente acordada, así como la aplicación del tratamiento posterior a la misma. La cesárea se desarrolló a las 34 semanas de embarazo con previa colocación de inductores de la maduración pulmonar fetal, cursó sin complicaciones y se obtuvo un neonato vivo pequeño para la edad gestacional. Se acordó tratamiento radioterápico al cabo de un mes postcesárea.

  9. Caracterização química e determinação dos estádios fenológicos de variedades de videiras cultivadas no Norte Fluminense Chemical characterization and phenological determination of grapes cultivated in the North area of Rio de Janeiro state

    Directory of Open Access Journals (Sweden)

    Felipe Cavalcanti Carneiro da Silva

    2008-03-01

    Full Text Available O experimento foi conduzido no município de Campos dos Goytacazes- RJ, durante os anos de 2005 e 2006, com o intuito de proceder a uma caracterização química e fenológica de variedades de videira cultivadas na região Norte Fluminense. Utilizou-se de plantas das variedades: Romana, Isabel, Kyoho, Moscatel de Hamburgo, Roberta e Niágara Rosada. Para a determinação do clico fenológico das seis variedades, realizaram-se podas em 20-03-2005 e 15-02-006. Para a poda realizada em fevereiro, verificou-se redução do período de poda à colheita em todas as variedades, sendo a variedade Isabel a mais tardia, com ciclo médio de 124 dias para os dois anos.The experiment was carried out in Campos dos Goytacazes County, RJ, in 2005 and 2006, aiming to characterize chemically and phenologically different grapes varieties, such as 'Romana', 'Isabel', 'Kyoho', 'Moscatel de Hamburgo', 'Roberta' and 'Niagara Rosada', cultivated in the North of the state of Rio de Janeiro. The six studied varieties were pruned on 03/20/2005 and 02/15/2006 to determine the phenological cycle. Pruning in February evidenced a reduction of the pruning-harvest period in all varieties. 'Isabel' was the latest variety, with a mean cycle of 124 days in both years.

  10. Clinical Observation on Thyroid Carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Park, Seon Yang; Shin, Yong Tae; Cho, Bo Yun; Kim, Byung Kuk; Koh, Chang Soon; Lee, Mun Ho [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1978-09-15

    Clinical features of 147 patients with biopsy-proven thyroid carcinomas were investigated from January, 1972 to April, 1978 at the Seoul National University Hospital with the following results. 1) The incidence of thyroid carcinomas according to their histopathological classification revealed 76.2% of papillary carcinoma, 19.0% of follicular carcinoma, and 3 cases of occult sclerozing carcinoma, 1 case of giant cell carcinoma and 1 case of metastatic melanoma. 2) The ratio of male to female patients was 1:8.3 and showed no difference between papillary and follicular carcinomas. 3) The age distribution showed the peak incidence in the fourth decade (29.3%) followed by the fifth and sixth decades. 4) The average duration of illness from the onset of symptoms was about 5 years while it was 4.4 years and 7.6 years in the papillary and follicular carcinomas respectively. 5) The diameter of the thyroid masses was smaller than 5 cm in 53.6% of the patients, from 5 cm to 10 cm in 40.0% and larger than 10 cm in 6.4%. 6) In 36.4% of the patients with thyroid carcinomas the thyroid masses were fixed to adjacent tissues. 7) Metastasis to the regional lymph nodes was noted in 40.0% of the total cases, and in 45.2% and 17.6% of the papillary and follicular carcinomas respectively, while the lung and bone metastases were found in 10.0% and 4.4% in each type respectively. 8) 88.9% of the patients showed cold areas in the thyroid scans using {sup 131}I. 9) Typical psammoma bodies were observed in 21.3% of the cases in the microscopic examination of the pathological specimens. 10) The initial diagnosis of thyroid malignancy could be made before histological confirmation in 64.5% of the patients. 11) The clinical staging slightly modified from Schulz method revealed 43.6% of the patients in stage I, 26.4% in stage II, 20.9% in stage III and 9.1% in stage IV. 12) The association with Hashimoto's thyroiditis was noted in 4 cases, with nodular goiter in 3 cases, and with follicular

  11. Hepatocellular carcinoma: a review

    Directory of Open Access Journals (Sweden)

    Balogh J

    2016-10-01

    Full Text Available Julius Balogh,1,2 David Victor III,1,3,4 Emad H Asham,1,2 Sherilyn Gordon Burroughs,1,2 Maha Boktour,1,2 Ashish Saharia,1,2 Xian Li,1,2 R Mark Ghobrial,1,2 Howard P Monsour Jr,1,3,4 1Sherrie and Alan Conover Center for Liver Disease and Transplantation, 2Division of Transplantation, Department of Surgery, 3Department of Gastroenterology and Transplant Hepatology, 4Department of Medicine, Houston Methodist Hospital, Houston, TX, USA Abstract: Hepatocellular carcinoma (HCC is the most common primary liver malignancy and is a leading cause of cancer-related death worldwide. In the United States, HCC is the ninth leading cause of cancer deaths. Despite advances in prevention techniques, screening, and new technologies in both diagnosis and treatment, incidence and mortality continue to rise. Cirrhosis remains the most important risk factor for the development of HCC regardless of etiology. Hepatitis B and C are independent risk factors for the development of cirrhosis. Alcohol consumption remains an important additional risk factor in the United States as alcohol abuse is five times higher than hepatitis C. Diagnosis is confirmed without pathologic confirmation. Screening includes both radiologic tests, such as ultrasound, computerized tomography, and magnetic resonance imaging, and serological markers such as α-fetoprotein at 6-month intervals. Multiple treatment modalities exist; however, only orthotopic liver transplantation (OLT or surgical resection is curative. OLT is available for patients who meet or are downstaged into the Milan or University of San Francisco criteria. Additional treatment modalities include transarterial chemoembolization, radiofrequency ablation, microwave ablation, percutaneous ethanol injection, cryoablation, radiation therapy, systemic chemotherapy, and molecularly targeted therapies. Selection of a treatment modality is based on tumor size, location, extrahepatic spread, and underlying liver function. HCC is an

  12. Carcinoma of the vagina

    International Nuclear Information System (INIS)

    Marcus, R.B. Jr.; Million, R.R.; Daly, J.W.

    1978-01-01

    Twenty-two patients with Stage I through IV primary vaginal squamous cell carcinomas treated for cure with radiation therapy are reviewed, with particular emphasis on the relationship of dose to complications and local control. All but 2 patients received 4000 to 6000 rad whole pelvis irradiation plus at least one radium application. Local control was 91%, with an absolute 2-year disease-free survival of 82%. The degree of anaplasia was found to influence prognosis, with all local and distant failures resulting from high-grade lesions. The complication rate was modest, with no fistulae or serious bowel complications. An analysis of total dose (external plus radium) with respect to local failure and complications showed that no major complications occurred at a combined dose below 9000 rad. An analysis of the individual contributions of external irradiation and radium implants showed that all but one very minor complication occurred at a radium dose of 4000 rad or higher. From these data, overall treatment planning and total dose recommendations are made

  13. Ensaio de variedades de linho em diferentes épocas. Comportamento fenológico e produção Flax varieties trial at different seasons. Phenological behaviour and production

    Directory of Open Access Journals (Sweden)

    Carlos Castro

    2010-12-01

    Full Text Available Apresentam-se os resultados de um ensaio, conduzido em Vila Real (Portugal no âmbito de uma parceria com a Universidade DeMontfort, visando avaliar o comportamento de variedades de linho, Linum usitatissimum L., em duas épocas de sementeira. Analisaram-se diversos parâmetros fenológicos e a produção obtida. Não se constataram diferenças entre as variedades mas a sementeira outonal revelou ser significativamente mais produtiva originando plantas mais altas e com maior diâmetro.We present the results of an experiment conducted in Vila Real (Portugal by a partnership with the University DeMontfort, to evaluate the behavior of varieties of linum (flax, Linum usitatissimum L., at two periods of sowing. We analyzed several phenological parameters and the production yield. No differences were registered between the varieties. However, the autumn sowing proved to be significantly more productive than the spring one, resulting in taller plants with larger diameter.

  14. Melhoramento do cafeeiro: XIV - Competição de variedades comerciais em Monte Alegre do Sul Coffee breeding: XIV - Comparative trial of commercial varieties of coffee in Monte Alegre do Sul

    Directory of Open Access Journals (Sweden)

    H. Antunes Filho

    1960-01-01

    Full Text Available Em fins de 1949 foi plantado na Estação Experimental de Monte Alegre do Sul um ensaio de variedades comerciais de café, cujos resultados, abrangendo seis anos de produção, são analisados e discutidos neste trabalho. A Estação Experimental de Monte Alegre do Sul situa-se em solo do tipo massapê-salmourão e apresenta a topogrofía acidentado que caracteriza extensa região cafeeira dos Estados de São Paulo e de Minas Gerais. A finalidade do ensaio é a de verificar o comportamento de diversas variedades, em comparação ao café Nacional, que ainda hoje é a variedade predominante nas fazendas que conservaram parte dos seus antigos cafèzais. As seguintes variedades acham-se representadas no experimento: Nacional, Amarelo de Botucatu, Bourbon Vermelho, Bourbon Amarelo, Mundo Novo, Caturra Vermelho, Caturra Amarelo, Laurina, Moragogipe A. D. e Semperflorens. Com exclusão do café Nacional, representado pela descendência de plantas típicos encontrados na própria Estação Experimental, as demais voriedades são formadas pela mistura de progênies de cafeeiros selecionados pela Seção de Genética do Instituto Agronômico, em Campinas. Como delineamento experimental adotou-se o de blocos incompletos com seis repetições. Ao fim de seis anos de colheitas a análise estatística revelou que a variedade Mundo Novo produziu significativamente mais do que as nove restantes. Em segundo plano classificou-se o Bourbon Amarelo, cuja produção, porém, não difere de modo significativo das que se verificaram para o Bourbon Vermelho, Caturra Amarelo e Caturra Vermelho. As quatro variedades com as maiores produções totais, em kg de frutos maduros (Mundo Novo, Bourbon Amarelo, Bourbon Vermelho e Caturra Amarelo, produziram significativamente mais do que as variedades antigas, como o Nacional e Amarelo de Botucatu, e mais tambem do que os variedades de menor interêsse comercial, como Maragagipe A. D., Laurina e Semperflorens. Os resultados s

  15. Incidência de Leifsonia xyli subsp. xyli em variedades de cana-de-açúcar a serem empregados para multiplicação no estado de São Paulo

    Directory of Open Access Journals (Sweden)

    Alfredo Seiiti Urashima

    2010-12-01

    Full Text Available O raquitismo-da-soqueira, causada por Leifsonia xyli subsp xyli (Lxx é uma das principais doenças da cana-de-açúcar pelo dano que acarreta à produtividade e estar presente em todas as regiões produtoras do país. Outro fator que contribui para sua importância na cultura é a dificuldade da sua identificação no campo pelo sintomas produzidos. Aliado a isso, mudas contaminadas juntamente com instrumentos de corte são os principais meios de disseminação da doença. O Laboratório de Genética Molecular (LAGEM da UFSCar é um dos laboratórios que realizam exames de sanidade quanto ao raquitismo-da-soqueira. O objetivo de presente trabalho foi o de examinar a incidência de Lxx nas canas enviadas para análise de sanidade ao LAGEM e reportar os resultados dos exames realizados entre os anos de 2005 e 2007. Esses resultados evidenciaram que RB867515 foi a variedade mais enviada em cada um dos três anos. Vinte e quatro das 98 variedades analisadas mostraram-se positivas quanto a Lxx, com porcentagem variando de 0,4 a 38,9 %.

  16. Ensaio de vinificação: influência da mistura de variedades de uva, sôbre a qualidade do vinho Wine fermentation: the blending of grape varieties to improve wine quality

    Directory of Open Access Journals (Sweden)

    Odette Zardetto de Toledo

    1959-01-01

    Full Text Available Foram realizados ensaios de vinificação, para observar a influência da associação de variedades de uvas cultivadas no Estado de São Paulo, sôbre a melhoria da qualidade do vinho. As uvas empregadas no ensaio foram das variedades Seibel 2 e Seibel 10096. A mistura dos mostos constituída de 70% da var. Seibel 10096 e 30% da var. Seibel 2 foi a que apresentou melhores resultados.The musts of two grape varieties (Seibel 2 and Seibel 10.096 raised in the State of S. Paulo were blended in different percentages to observe their influence on the wine quality. The variety Seibel 2 produces wines of very poor quality. A must composed of 50% Seibel 2 and 50% Seibel 10.096 produced a much better wine. The most remarkable improvement was obtained through the fermentation of a must composed of 70% Seibel 10.096 and 30% Seibel 2.

  17. Potential targets for lung squamous cell carcinoma

    Science.gov (United States)

    Researchers have identified potential therapeutic targets in lung squamous cell carcinoma, the second most common form of lung cancer. The Cancer Genome Atlas (TCGA) Research Network study comprehensively characterized the lung squamous cell carcinoma gen

  18. Genomic features of lobular breast carcinoma

    Science.gov (United States)

    Investigators with The Cancer Genome Atlas (TCGA) Research Network have identified molecular characteristics of a type of breast cancer, invasive lobular carcinoma (ILC), that distinguishes it from invasive ductal carcinoma (IDC), the most common invasive breast cancer subtype.

  19. Multifocal hyperfunctioning thyroid carcinoma without metastases.

    Science.gov (United States)

    Nishida, Akiko T; Hirano, Shigeru; Asato, Ryo; Tanaka, Shinzo; Kitani, Yoshiharu; Honda, Nobumitsu; Fujiki, Nobuya; Miyata, Kouji; Fukushima, Hideyuki; Ito, Juichi

    2008-09-01

    Hyperthyroidism due to thyroid carcinoma is rare, and most cases are caused by hyperfunctioning metastatic thyroid carcinoma rather than primary carcinoma. Among primary hyperfunctioning thyroid carcinoma, multifocal thyroid carcinoma is exceedingly rare, with the only one case being reported in the literature. Here, we describe the case of a 62-year-old woman with multifocal functioning thyroid carcinoma. Technetium-99m (99m Tc) scintigraphic imaging showed four hot areas in the thyroid gland. Histopathological examination of all four nodules revealed papillary carcinoma, corresponding to hot areas in the 99m Tc scintigram. DNA sequencing of the thyrotropin receptor (TSH-R) gene from all nodules revealed no mutation, indicating that activation of TSH-R was unlikely in the pathophysiogenesis of hyperfunctioning thyroid carcinoma in the present case.

  20. General Information about Merkel Cell Carcinoma

    Science.gov (United States)

    ... Genetics of Skin Cancer Skin Cancer Screening Research Merkel Cell Carcinoma Treatment (PDQ®)–Patient Version General Information About Merkel Cell Carcinoma Go to Health Professional Version Key ...

  1. Osteopontin expression in salivary gland carcinomas

    DEFF Research Database (Denmark)

    Bjørndal, Kristine; Larsen, Stine R; Godballe, Christian

    2011-01-01

    J Oral Pathol Med (2010) Background:  In several cancer types, osteopontin (OPN) expression has been correlated with tumor progression and prognosis. Two earlier studies have examined OPN expression in salivary gland carcinomas with contradictory results. Methods:  One hundred and seventy......:  Osteopontin was expressed in all salivary gland carcinomas. Adenoid cystic carcinomas had the highest mean sum score (7.3) and a significantly higher proportion of carcinomas with high OPN sum score than both mucoepidermoid carcinoma and acinic cell carcinoma. Correlation of OPN expression with known...... prognostic factors in salivary gland carcinomas was insignificant. Conclusions:  Salivary gland carcinomas express OPN. The expression does not correlate with known prognostic factors....

  2. CT diagnosis of thyroid carcinoma

    International Nuclear Information System (INIS)

    Luo Dehong; Shi Mulan; Luo Douqiang

    1998-01-01

    Purpose: To study the CT appearances of thyroid carcinoma and its cervical metastatic lymphadenopathy, as well as to evaluate the diagnostic criteria of tumor invasion of adjacent structures. Methods: CT findings of surgery and pathology proved thyroid carcinoma in 52 patients were analyzed. Results: All of the primary tumor were heterogeneous in density, 32 tumors (82.5%) were ill-defined. Fine granular calcifications were revealed in 11 primary tumors and metastatic lymph nodes in 5 cases. Cystic formation with intracystic high density papillary-like nodules were found in 4 primary tumors and metastatic lymphadenopathy in 5 cases. Trachea, esophagus and carotic artery invasion were proved by surgery in 22, 21 and 10 cases respectively. Serrated inner wall and tumor nodule protrusion into tracheal lumen were the definite signs of trachea invasion. Use tumor encasement over 1/2 of the circumference of esophagus and 1/3 of the circumference of carotid artery as the diagnostic criterion of invasion, sensitivity was 71.4%, 100.0% specificity was 96.3%, 95.2% respectively. Conclusion: Fine granular calcification and cystic formation with high attenuation intracystic papillary-like nodules were characteristic manifestations of primary thyroid carcinoma (especially papillary carcinoma) and its metastatic lymphadenopathy as well. Contrast enhanced CT scan is helpful in the diagnosis of thyroid carcinoma and the delineation of tumor extent, which is very important in surgical planning

  3. Trocas gasosas e fluorescência da clorofila a em variedades de cana-de-açúcar submetidas à deficiência hídrica Gas exchange and chlorophyll a fluorescence of sugarcane varieties submitted to water stress

    Directory of Open Access Journals (Sweden)

    Eduardo R. Gonçalves

    2010-04-01

    Full Text Available O estresse hídrico afeta grande parte da agricultura mundial, razão por que se propôs, através deste trabalho, avaliar o comportamento, em casa-de-vegetação, de quatro variedades de cana-de-açúcar (SP79-1011, RB72454, RB98710 e RB92579 submetidas a déficit hídrico durante a fase inicial de crescimento vegetativo. As plantas foram cultivadas em vasos plásticos contendo 15 kg de solo. O estudo foi um fatorial (4 variedades x 3 níveis de água disponível no solo, em delineamento inteiramente casualizado, com cinco repetições. Os níveis de água no solo foram baseados na capacidade de água disponível (CAD ficando assim definidos: controle (80 a 100% da CAD, estresse hídrico moderado (40 a 60% da CAD e estresse hídrico severo (0 a 20% da CAD. A deficiência hídrica provocou reduções significativas na condutância estomática (gs, transpiração foliar (E, fotosíntese líquida (A e na eficiênca de uso da água de produção (EUAp, independente da variedade. As variedades SP79-1011 e RB98710 apresentaram maior sensibilidade estomática, reduzindo gs e E aos 71 dias após início do estresse, mesmo sob condições controle; entretanto, em tais condições A foi pouco afetada, indicando que as plantas são capazes de manter a taxa fotossintética, mesmo com os estômatos parcialmente fechados. O estresse hídrico provocou pouca redução na eficiência fotoquímica potencial das variedades estudadas.Water stress affects a great part of the world's agriculture. Thus, this work was conducted to evaluate photosynthetic traits in four varieties of sugarcane (SP79-1011, RB72454, RB98710 and RB92579 submitted to water stress during the early stage of the vegetative period. The plants were cultivated in plastic pots (15 kg of soil. The study was a factorial (4 varieties x 3 levels of soil water content based on available water capacity (AWC, in a completely randomized design with 5 replications. The levels of water content in the soil

  4. Palliation of Dysphagia in Carcinoma Esophagus

    OpenAIRE

    Ramakrishnaiah, Vishnu Prasad Nelamangala; Malage, Somanath; Sreenath, G.S.; Kotlapati, Sudhakar; Cyriac, Sunu

    2016-01-01

    Esophageal carcinoma has a special place in gastrointestinal carcinomas because it contains two main types, namely, squamous cell carcinoma and adenocarcinoma. Carcinoma esophagus patients require some form of palliation because of locally advanced stage or distant metastasis, where it cannot be subjected to curable treatment with surgery and chemoradiation. Many modalities of palliation of dysphagia are available, but the procedure with least morbidity, mortality, and long-term palliation of...

  5. Spontaneous regression of metastatic Merkel cell carcinoma.

    LENUS (Irish Health Repository)

    Hassan, S J

    2010-01-01

    Merkel cell carcinoma is a rare aggressive neuroendocrine carcinoma of the skin predominantly affecting elderly Caucasians. It has a high rate of local recurrence and regional lymph node metastases. It is associated with a poor prognosis. Complete spontaneous regression of Merkel cell carcinoma has been reported but is a poorly understood phenomenon. Here we present a case of complete spontaneous regression of metastatic Merkel cell carcinoma demonstrating a markedly different pattern of events from those previously published.

  6. El modelo V.S.P. en lechuga Batavia Lactuca sativa var. Capitata L. y respuesta de dos variedades a las aplicaciones de compuestos orgánicos

    Directory of Open Access Journals (Sweden)

    Bruzón C. Serapio F.

    1996-12-01

    Full Text Available

    An investigation was realized in the region of Pavitas, municipality of La Cumbre, Santa Fe farm, 1480 meters above sea level in a soil of Pavas Association (Aeric Tropaquept to prove the plastic cup-sustrate-plant model in the production of Batavia lecttuce Lactuca sativa var. capitata, and the effects of the organic matter filter cake press, cattle manure, poultry manure and earthworm soil, incorporated in the soil. Twenty two (22 treatments and fours repetitions were applied with each of the two varieties (Great lakes 118 and Pacific, the treatments corresponded to 5, 10, 15 t/ha of the organic matter which were applied to the soil fifteen days before transplantations occured. The results showed an excellent plant vigour and quality after the transplantation. It was also observed a good plant poblation and uniformity. The sustrate filter cake press mixed with botton fly ash presented better results in the field than the other treatments, having the highest crop yield and the best quality. The Great Lakes 118 with this treatment doubled the production of the treatment with soil. With the organic sustrates, the poultry manure 5 t/ha projected better results. The work showed the good behavior of the varity Great Lakes 118 compared to the Pacific. This treatments also improved the chemical caracteristics of the soil, especially increased the organic matter, potassium, phosporus, manganesum and zinc.

    En el Corregimiento Pavitas, municipio de La Cumbre, en la Finca Santafé, a 1.480 msnm en un suelo de la Asociación Pavas (Aeric Tropaquept se probó el modelo vaso-sustrato-planta (VSP, en la producción de plántulas de lechuga Batavia L. sativa var. capitata y el efecto en la producción de los compuestos orgánicos, cachaza, lombricompuesto, gallinaza y bovinaza, incorporados al suelo. Los 22 tratamientos con cuatro repeticiones, repartidos en dos variedades (Great Lake 118 y Pacific correspondieron a dosis (5, 10, 15 t/ha de las

  7. Efeito do abacate (Persea americana Mill variedade hass na lipidemia de ratos hipercolesterolêmicos Effect of the hass avocado (American Persea Mill on hipercolesterolemic rats

    Directory of Open Access Journals (Sweden)

    Jocelem Mastrodi Salgado

    2008-12-01

    Full Text Available Os fitonutrientes podem ser encontrados em muitas frutas, sendo o abacate o mais rico em beta-sitosterol (fitoesterol e glutationa. O fitoesterol é uma substância de origem vegetal cuja estrutura é muito similar a do colesterol e seu mecanismo de ação envolve a inibição intestinal de absorção do colesterol e diminuição da síntese de colesterol hepático. O efeito é exercido sobre os valores de colesterol plasmático total e LDL, sem afetar os níveis de HDL e triglicérides sanguíneos. O presente trabalho teve como objetivo analisar a influência do consumo de farinha de abacate variedade Hass nos níveis séricos de colesterol total, HDL, LDL, triglicérides, colesterol hepático e excretado. Estes parâmetros foram investigados em ratos Wistar hipercolesterolêmicos durante 30 e 60 dias de experimento. Ao final de 30 dias, a dieta com 15% de abacate mostrou ser mais efetiva para reduzir os níveis de colesterol total e LDL e aumentar o HDL em comparação ao controle. Foi observado que para o teor de colesterol excretado a melhor dieta foi a de 25% de abacate, pois quanto maior a concentração de abacate, maior a excreção de colesterol. A dieta com 15% e 25% de abacate, foram as que mais influenciaram nos níveis de colesterol hepático.Phytonutrients can be found in fruits, and the avocado contains four times more beta-sitosterol (phytosterol and it is one of the best glutathione sources. The phytosterol is a vegetable substance whose structure is very similar to the cholesterol one and its action mechanism involves the intestinal inhibition of cholesterol absorption and the synthesis of hepatic cholesterol. The effect has an influence on the values of total plasmatic cholesterol and LDL without affecting the levels of HDL and triglycerides. The present work had the objective to analyze the influence of the consumption of the Hass avocado on the levels of total cholesterol, HDL, LDL, triglycerides, and hepatic and excreted

  8. Basal cell carcinoma-treatment with cryosurgery

    Directory of Open Access Journals (Sweden)

    Kaur S

    2003-03-01

    Full Text Available Basal cell carcinoma is a common cutaneous malignancy, frequently occurring over the face in elderly individuals. Various therapeutic modalities are available to treat these tumors. We describe three patients with basal cell carcinoma successfully treated with cryosurgery and discuss the indications and the use of this treatment modality for basal cell carcinomas.

  9. Efecto de la temperatura en el periodo de latencia y producción de esporangios de Peronospora sparsa Berkeley en tres variedades de rosa

    Directory of Open Access Journals (Sweden)

    Gómez Sandra

    2005-12-01

    variedad del hospedante, bajo condiciones de laboratorio. Esporangios de P. sparsa se tomaron de hojas de rosa afectadas y se recogieron en agua destilada estéril. Una suspensión de 30.000 esporangios/mL se utilizó para la inoculación de folíolos de rosa sanos provenientes de plantas de las variedades ‘Charlotte’, ‘Classy’ y ‘First Red’ injertadas en cada uno de los portainjertos ‘Natal Briar’ y ‘Manetti’ y como estacas. Las temperaturas evaluadas correspondieron a 10, 14, 18 y 22 ºC, bajo condiciones de 12 h de luz seguidas de 12 h de oscuridad. A los 7 días de la inoculación, se estableció el índice de esporulación (IE y se cuantificó la producción de esporangios/cm2 del folíolo. Se observaron períodos de latencia más cortos en la variedad ‘Classy’, intermedios en la variedad ‘Charlotte’ y más prolongados en ‘First Red’. Temperaturas superiores a 18 ºC fueron favorables para la esporulación del patógeno. ‘Classy’ fue la variedad que presentó mayor índice de esporulación, ‘Charlotte’ mostró valores intermedios y ‘First Red’ tuvo los menores índices a las cuatro temperaturas evaluadas. Las variaciones en el período de latencia y la esporulación fueron específicas, de acuerdo a la temperatura y la variedad.

  10. Squamous carcinoma of the nasopharynx

    International Nuclear Information System (INIS)

    Moloy, P.J.; Chung, Y.T.; Krivitsky, P.B.; Kim, R.C.

    1985-01-01

    Nasophryngeal carcinoma is an unusual neoplasm among squamous cell carcinomas of the head and neck. The tumor is rare in most parts of the world but is strikingly common in several Asian subpopulations, notably Chinese in Hong Kong and Guangdong Province. The Epstein-Barr virus is intimately related to the disease and elicits the formation of antibodies that are useful for diagnosis and follow-up study. The virus has not been conclusively shown to cause nasopharyngeal cancer, however. Histologically, nasopharyngeal carcinoma is anaplastic in 75% of cases and better differentiated in 25% of patients. All tumors are treated by high-dose radiation to the primary site and both sides of the neck. Surgical treatment, in the neck only, is reserved for irradiation failures. The prognosis is better in patients younger than 40 years, in patients without clinical cervical nodal involvement and, unexpectedly, in patients with anaplastic tumors. 18 references, 2 figures, 2 tables

  11. Neuroendocrine carcinomas of the lung

    International Nuclear Information System (INIS)

    Forster, B.B.; Muller, N.L.; Miller, R.R.; Nelems, B.; Evans, K.G.

    1988-01-01

    Neuroendocrine lung carcinomas may be classified as Kulchitzky cell carcinoma (KCC) I (classic carcinoids), II (atypical carcinoids), and III (small cell carcinomas). The authors reviewed the clinical, CT, and pathologic findings in 31 patients with KCC. KCC I occurred mainly in younger nonsmoking women, and on CT were small (1.8 cm average diameter) and showed lymphadenopathy in one of ten patients. KCC II were found mainly in older smoking men and were larger (3.9 cm, P < .001), and four of ten patients had lymphadenopathy. KCC III occurred in older smoking men and were large (4.2 cm), and 11 of 11 patients had lymphadenopathy. Sputum cytology and percutaneous and bronchoscopic biopsy were often nondiagnostic or misleading. The authors conclude that chest CT provides additional discriminating information in the preoperative diagnosis of KCC

  12. Squamous carcinoma of the nasopharynx

    Energy Technology Data Exchange (ETDEWEB)

    Moloy, P.J.; Chung, Y.T.; Krivitsky, P.B.; Kim, R.C.

    1985-07-01

    Nasophryngeal carcinoma is an unusual neoplasm among squamous cell carcinomas of the head and neck. The tumor is rare in most parts of the world but is strikingly common in several Asian subpopulations, notably Chinese in Hong Kong and Guangdong Province. The Epstein-Barr virus is intimately related to the disease and elicits the formation of antibodies that are useful for diagnosis and follow-up study. The virus has not been conclusively shown to cause nasopharyngeal cancer, however. Histologically, nasopharyngeal carcinoma is anaplastic in 75% of cases and better differentiated in 25% of patients. All tumors are treated by high-dose radiation to the primary site and both sides of the neck. Surgical treatment, in the neck only, is reserved for irradiation failures. The prognosis is better in patients younger than 40 years, in patients without clinical cervical nodal involvement and, unexpectedly, in patients with anaplastic tumors. 18 references, 2 figures, 2 tables.

  13. Oncofetal fibronectins in oral carcinomas

    DEFF Research Database (Denmark)

    Mandel, U; Gaggero, B; Reibel, J

    1994-01-01

    -B-containing isoform and the oncofetal FN isoform derived by O-glycosylation, in oral squamous cell carcinomas, premalignant lesions, and normal oral mucosa. A selective expression of the ED-B-containing isoform was demonstrated in close relation to the invading carcinoma (38/38), whereas there was virtually...... no staining in submucosa underlying premalignant lesions (1/11) and normal epithelium (0/5). The ED-B-containing FN showed close co-distribution and staining pattern with the oncofetal isoform derived by O-glycosylation. These results demonstrate that accumulation of FN adjacent to oral carcinomas includes...... in breast and oral tumors. Another oncofetal FN isoform containing the ED-B sequence is derived by alternative splicing, and FN containing ED-B has been found to be a stromal marker of malignancies in various tissues. Here we report a comparative study by immunohistology of the distribution of the ED...

  14. Radioimmune localization of occult carcinoma

    International Nuclear Information System (INIS)

    Duda, R.B.; Zimmer, A.M.; Rosen, S.T.; Gilyon, K.A.; Webber, D.; Spies, S.; Spies, W.; Merchant, B.

    1990-01-01

    Patients with a rising serum carcinoembryonic antigen level and no clinical or roentgenographic evidence of recurrent or metastatic cancer present a treatment dilemma. Eleven such patients, 10 with a previously treated colorectal carcinoma and 1 with a previously treated breast carcinoma, received an injection of the anticarcinoembryonic antigen monoclonal antibody ZCE-025 labeled with the radioisotope indium 111. Nuclear scintigraphy was performed on days 3 and 5 through 7 to detect potential sites of tumor recurrence. The monoclonal antibody scan accurately predicted the presence or absence of occult malignancy in 7 (64%) patients. Second-look laparotomy confirmed the monoclonal antibody scan results in the patients with colorectal cancer, and magnetic resonance imaging confirmed metastatic breast cancer. This study demonstrates that In-ZCE-025 can localize occult carcinoma and may assist the surgeon in facilitating the operative exploration. In-ZCE-025 assisted in the initiation of adjuvant therapy for the patient with breast cancer

  15. Treatment of thyroid follicular carcinoma.

    Science.gov (United States)

    Ríos, Antonio; Rodríguez, José M; Parrilla, Pascual

    2015-12-01

    Differentiated thyroid carcinoma includes 2 different tumor types, papillary (PC) and follicular carcinoma (FC), and although similar, their prognosis is different. FC is uncommon, and this has led to it often being analyzed together with PC, and therefore the true reality of this tumor is difficult to know. As a result, the diagnostic and therapeutic management and the prognostic factors in differentiated carcinoma are more predictive of PC than FC. In this review we analyze the current state of many of the therapeutic aspects of this pathology. The best surgical technique and the usefulness of associated lymphadenectomy is also analyzed. Regarding post-surgical ablation with 131I, the indications, doses and usefulness are discussed. For the remaining therapies we analyze the few indications for radiotherapy and chemotherapy, and of new drugs such as tyrosine kinase inhibitors. Copyright © 2015 AEC. Publicado por Elsevier España, S.L.U. All rights reserved.

  16. Parathyroid carcinoma in tertiary hyperparathyroidism.

    Science.gov (United States)

    Kim, Byung Seup; Ryu, Han Suk; Kang, Kyung Ho; Park, Sung Jun

    2016-10-01

    Parathyroid carcinoma is a rare disease of unknown etiology. This study presents a case of parathyroid carcinoma in a patient with tertiary hyperparathyroidism. Despite a successful kidney transplantation, the intact parathyroid hormone (iPTH) level of the patient was elevated consistently and could not be controlled by medical therapy. Due to the development of tertiary hyperparathyroidism with bone pain and osteoporosis, subtotal parathyroidectomy was performed 4 months after the kidney transplantation. Histological evaluation revealed that one of four parathyroid lesions was a parathyroid carcinoma, while the others were diffuse hyperplasia. Postoperative laboratory studies indicated a decreased level of iPTH. A positron emission tomography-computed tomography performed 6 months after the operation revealed no evidence of local recurrence or distant metastasis. Copyright © 2013. Published by Elsevier Taiwan.

  17. Carcinoma of the ovary

    International Nuclear Information System (INIS)

    Horowitz, C.; Brady, L.W.

    1987-01-01

    Ovarian carcinoma presents a difficult management problem. Localized disease is difficult to diagnose and advanced disease is usually present by the time the patient presents with symptoms (pain, discomfort, distention, mass, and so on). Surgery alone is inadequate because even if a complete resection is performed approximately 50% of cases recur. Postoperative adjuvant therapy is given in the form of radiation therapy, radioisotopes, or chemotherapy for stage I, stage II, and optimal stage III disease. No clear benefit can be ascribed to any treatment. It is evident, however, that abdominopelvic irradiation is superior to pelvic irradiation alone; many of patients receiving pelvic irradiation alone fail in the upper abdomen owing to occult disease. Prognosis depends on many variables in addition to stage: grade of tumor, histology, age of patient,and completeness of surgery. Several studies have tried to incorporate these variables into their results. Dembo perhaps has been the most diligent in incorporating them into appropriate low-, intermediate- and high-risk groups. Patients with residual macroscopic or bulk disease have the poorest prognosis; chemotherapy is the usual first-line treatment choice, although no optimal treatment is known. Regimens usually include cisplatin; many single agent and multiagent drugs have been tried. The challenge of the future lies in earlier diagnosis; those diagnosed early can attain long term survival. The problem lies in choosing the appropriate therapy because randomized controlled studies are few and all modalities can be effective. No clear picture emerges about the best treatment, although there is a slight indication that irradiation affords better intra-abdominal control. Continued studies are needed to prove this

  18. Radioembolization of hepatocellular carcinoma.

    Science.gov (United States)

    Van de Wiele, Christophe

    2010-12-01

    In this review paper, available data on radioembolization of unresectable hepatocellular carcinoma (HCC) using commercially available radiopharmaceuticals, respectively (131)I-Lipiodol, Therasphere (glass-microspheres) and SIRspheres (resin-microspheres) are reviewed. In the palliative setting, (131)I-Lipiodol was shown to yield response rates of 17-92% which in patients with portal vein thrombosis (PVT) translate into a survival benefit as evidenced by a phase III randomized trial. Furthermore, in terms of efficacy, (131)I-Lipiodol is as efficacious as trans-arterial chemoembolization (TACE) but far better tolerated. In the adjuvant setting, improved recurrence-free and overall survival when compared to surgery alone have been reported but these results warrant confirmation by randomized prospective trials. Similar to (131)I-Lipiodol, when administered in a palliative setting, radioembolization using (90)Y microspheres was proven effective for selected cases of non-resectable HCC and well tolerated. Available data suggest that Therasphere treatment outperforms TACE both in terms of response as in terms of event-free survival in unresectable HCC. However, this finding needs confirmation by randomized prospective trials. Therasphere treatment was also shown to limit progression of HCC allowing potential candidates for orthotopic liver transplantation (OLT) more time to wait for donor organs as well as to downstage the HCC disease to such an extent that patients that were initially not, as yet become eligible for OLT with a gain in survival. Finally, Therasphere was shown to be safe and efficacious in HCC patients presenting with PVT, reason for which approval was granted for this indication by the FDA.

  19. Primary orbital squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Ana L. Campos Arbulú

    2017-02-01

    Full Text Available Primary orbital squamous cell carcinoma is a rare entity. There is little published literature. We report a case of primary squamous cell carcinoma of the orbital soft tissues. Surgical resection offered the best treatment for the patient. Complete resection of the lesion was achieved. The patient received adjuvant radiotherapy due to the proximity of the lesion to the surgical margins. Surgical treatment is feasible and should be considered as part of the surgeon's arsenal. However, therapeutic decisions must be made on a case-by-case basis

  20. Radiation therapy of prostatic carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Jacobsen, A B; Fossaa, S D; Oedegaard, A [Norske Radiumhospital, Oslo

    1980-07-10

    Between 1971 and 1976, 33 patients with adenocarcinoma of the prostate T2-T4 and without evidence of distant metastases have been treated with high energy radiotherapy 50-70Gy given to the primary tumour. 72% showed local response to the treatment. Actuarial 5 years survival (uncorrected) for patients primarily treated with radiotherapy was 52%, but for patients who had earlier received oestrogens, only 16%. The results in terms of local control as well as survival were best for category T2 and T3 patients who had not previously received hormone treatment. The response rate was better for moderately differentiated carcinomas than for poorly differentiated carcinomas.

  1. Testicular Metastases From Prostate Carcinoma

    Directory of Open Access Journals (Sweden)

    Harrina Erlianti Rahardjo

    2010-07-01

    Full Text Available Metastasis of prostate carcinoma to the testis is seldom reported. The tumour may spread from the prostatic urethra by retrograde venous extension, arterial embolism or through direct invasion into the lymphatics and lumen of the vas deferens. Clinical manifestations of secondary testicular tumours from the prostate are most often unsuspected clinically and are instead detected incidentally during orchidectomy. Less frequently, a palpable mass is detected, which may be confused with a primary testicular neoplasm. We report a case of a 66-year-old patient with adenocarcinoma of the prostate, and a left testicular tumour that was diagnosed as metastases from prostate carcinoma after radical orchidectomy.

  2. Thyroid Metastasis from Breast Carcinoma Accompanied by Papillary Thyroid Carcinoma

    Directory of Open Access Journals (Sweden)

    Song-I Yang

    2014-07-01

    Full Text Available Metastasis to the thyroid gland is very rare. Recently, we experienced a case of thyroid metastasis from breast cancer accompanying a papillary thyroid. A 51-year-old female patient presented with a palpated lymph node on her left lateral neck. The patient had undergone a left modified radical mastectomy followed by chemotherapy and hormonal therapy 12 years prior. Ultrasonography of the neck revealed a malignant looking nodule at the left thyroid lobe, measuring 0.9 × 0.9 cm, and several cystic nodules at the right thyroid lobe. Ultrasonography of the neck additionally revealed a malignant looking lymph node at the right level VI. Fine-needle aspiration of the left thyroid lobe resulted in a diagnosis of papillary thyroid carcinoma and that of the right level VI in Hurthle cell lesion. The patient had a total thyroidectomy with selective dissection of the left neck node. Pathologic assessment of the specimen revealed metastatic carcinoma from the breast carcinoma and papillary thyroid carcinoma. Although the thyroid gland is highly vascularized, metastasis of malignant tumors to the thyroid is relatively rare and detection of metastasis shows a low frequency. So a careful evaluation of thyroid tumor should be considered in a patient with a history of other malignancy.

  3. Multiple gastrointestinal metastases of Merkel cell carcinoma.

    Science.gov (United States)

    Poškus, Eligijus; Platkevičius, Gediminas; Simanskaitė, Vilma; Rimkevičiūtė, Ernesta; Petrulionis, Marius; Strupas, Kestutis

    2016-01-01

    Merkel cell carcinoma is an aggressive skin malignancy. Primary Merkel cell carcinomas are treated by wide radical excision with or without adjuvant radiotherapy, while benefits of adjuvant chemotherapy remain doubtful. There are only several cases of gastrointestinal metastases of Merkel cell carcinoma reported so far. We report a case of recurrent Merkel cell carcinoma with metastases to the stomach and the small intestines after wide excision of primary Merkel cell carcinoma. Copyright © 2016 The Lithuanian University of Health Sciences. Production and hosting by Elsevier Urban & Partner Sp. z o.o. All rights reserved.

  4. DETECTION OF TELOMERASE ACTIVITY IN BREAST CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    Yang Wentao; Xu Liangzhong; Zhang Taiming; Zhu weiping; Li Xiaomei; Jin Aiping

    1998-01-01

    Objective:To investigate the significance of telomerase activity in breast carcinoma with its respect to axillary lymph node status. Methods: Telomerase activity was analyzed in 88 breast carcinomas and 16benign breast lesions, using polymerase chain reaction (PCR)-based telomeric repeat amplification protocol (TRAP) assay. Results: Telomerase activity was detected in 75 (85%) of 88 breast carcinomas (including three breast carcinomas in situ which were all positive for telomerase activity), whereas in benign breast lesions analyzed only 2(12.5%) of 16 cases were positive for telomerase activity. The difference between the two groups was statistically significant (P<0.001). Besides,telomerase activity was expressed significantly higher in node-positive breast carcinoma (93%) than in nodenegative ones (77%) (P<0.05). Conclusion: Our results suggest that telomerase activation plays an important role during breast carcinoma development. It is possible that this enzyme may serve as an early indication of breast carcinoma.

  5. Grape varieties in Chile and Argentina (1550-1850. Genealogy of torrontés Variedades de uva en Chile y Argentina (1550-1850. Genealogía del torrontés

    Directory of Open Access Journals (Sweden)

    Pablo Lacoste

    2010-01-01

    Full Text Available From the eighteenth century until today Cuyo and central Chile have been the main viticulture centers in Latin America and one of the most developed in the world. Their wine and spirits making have had important social, economic, politic and cultural implications in the region. Behind this, there has been viticulture, intensive and specialized farm-working, and viticulturists, who have had key roles. This article, based on originals and unpublished documents from Santiago, Mendoza, and San Juan notaries and court archives, examines varieties cultivated in the region. At the end, a document corpus was generated with 3.5 million plants in order to identify time of entry, adaptation, and propagation of grape varieties from Spanish colonization until French strains entered the region during mid nineteenth century. In particular, coexistence of Pais grape and Italia grape (muscat of Alexandria is examined, which had direct influence over the appearance of the Torrontes variety. The latest is the only high value wine-making Creole variety that prevails until today and is the most important in white-wine-making in Argentina.Cuyo y Chile central constituyen, desde el siglo XVIII hasta hoy, el principal polo vitivinícola de América Latina y uno de los con mayor desarrollo del mundo. Su producción de vinos y aguardientes ha tenido fuertes implicancias sociales, económicas, políticas y culturales en la región. En la base de este proceso se encuentra el cultivo de la vid, trabajo agrícola intensivo y especializado, en el cual los vidueños tienen una relevancia central. Este artículo examina las variedades cultivadas en la región a partir de documentos originales inéditos, sobre todo de fondos notariales y judiciales de archivos de Santiago, Mendoza y San Juan. Sobre esta base se conformó un corpus documental de 3,5 millones de plantas, con vistas a identificar el proceso de ingreso, adaptación y propagación de las variedades de vid, desde la

  6. Eficiencia de uso del nitrógeno en variedades de papa para industria cultivadas en el sudeste de la provincia de Buenos Aires Nitrogen use efficiency in potato processing varieties grown in the southeast of Buenos Aires province

    Directory of Open Access Journals (Sweden)

    Claudia Marcela Giletto

    2007-07-01

    Full Text Available El objetivo de este trabajo fue determinar la eficiencia de utilización del N (EUN, la eficiencia fisiológica (EFN y la eficiencia agronómica de uso del N (EAN en las variedades Innovator, Russet Burbank, Bannock Russet y Gem Russet bajo disponibilidades de N de 235, 311, 383 y 407 kg N ha-1. Innovator y Russet Burbank fueron las variedades que presentaron la mayor EAN (175,1 y 175,5 kg de tubérculo kg N-1; respectivamente y a su vez las que presentaron una mejor respuesta al agregado de N. Innovator presentó mayor requerimiento de N que Russet Burbank; en tanto que Bannock Russet y Gem Russet presentaron menor EAN (147,5 y 135,6 kg tubérculos kg N-1; respectivamente, no respondiendo al agregado de N en cuanto a la producción de tubérculos. La menor EAN en Bannock Russet se debió a la menor EUN, pero en Gem Russet fue consecuencia de una menor EFN. Sin embargo, dado que estas últimas dos variedades poseen tubérculos con mejor calidad industrial que Russet Burbank, es de interés recabar mayor información respecto a sus requerimientos y estrategias de manejo.The purpose of this work was to determine nitrogen utilization efficiency (NUE, nitrogen physiological efficiency (NPE and nitrogen agronomic efficiency (NAE in contrasting potato varieties Innovator, Russet Burbank, Bannock Russet and Gem Russet with different nitrogen availability (235, 311, 383 and 407 kg N ha-1. Innovator and Russet Burbank showed greater NAE (175,1 and 175,5 kg of tuber kg N-1 and their response to applied N was higher than in other cultivars. Innovator required more nitrogen than Russet Burbank, while. Bannock Russet and Gem Russet showed a lower NAE (147,5 and 135,6 kg of tuber kg N-1 and they did not respond to the applied nitrogen to produce tuber. Bannock Russet showed a lower NAE as a consequence of it low NUE but Gem Russet presented a low NAE as a consequence of it low NPE. However, both cultivars showed a higher processing quality than Russet Burbank

  7. Caracterização morfológica e dissimilaridade genética entre variedades crioulas de melão Morphological characterization and genetic dissimilarity in melon landraces

    Directory of Open Access Journals (Sweden)

    Raquel Silviana Neitzke

    2009-12-01

    Full Text Available Variedades crioulas de melão (Cucumis melo são cultivadas no Sul do Brasil para consumo familiar e também para comercialização dos frutos. No entanto, existe uma carência de trabalhos relativos a sua caracterização. Este trabalho teve por objetivo caracterizar e avaliar a variabilidade genética de variedades crioulas de melão do Sul do Brasil mantidos no Banco Ativo de Germoplasma de Cucurbitáceas da Embrapa Clima Temperado. Foram caracterizados 14 acessos utilizando 26 descritores morfológicos de fruto. Os dados foram analisados pelos métodos de agrupamento de Tocher e hierárquico UPGMA. Os métodos de agrupamento foram parcialmente concordantes. O acesso C88 possui características distintas, ficando isolado dos demais, pois é o único entre todos os avaliados que apresenta formato piriforme e sem gomos, cor de epicarpo creme, cor de polpa branca e ruptura profunda no fruto. Existe grande variabilidade genética, para caracteres de frutos, nas variedades crioulas de melão conservadas nesse Banco Ativo de Germoplasma, com potencial para uso no melhoramento genético, destacando-se o acesso C71 por possuir sabor adocicado e polpa de cor laranja e o C72, por apresentar elevados valores de peso de fruto e espessura de polpa.Melon landraces (Cucumis melo are cultivated in South of Brazil for family consumption and also for marketing fruits. However, there is a lack of works related to characterization of these landraces. The objective of this work was to characterize and evaluate genetic variability of melon landraces from South of Brazil which are maintained in the Cucurbitaceae Genebank at Embrapa Clima Temperado, trough morphological characterization. Fourteen accessions were characterized in 26 morphological fruit descriptors. Data were analyzed by Tocher grouping method and UPGMA hierarchical. The two methods agreed partially. The accession C88 has unique characteristics, being isolated when compared to the other accessions, it

  8. Evaluación de dos tipos de esquejes para producción de tubérculo-semilla élite en cuatro variedades de papa Solanum phureja juz et buk y Solanum tuberosum

    Directory of Open Access Journals (Sweden)

    Sidney Benhur Moreno Rengifo

    2004-07-01

    (axilar y apical. Se evaluaron las siguientes variables respuesta: porcentaje de supervivencia de esquejes a la tercera semana, longitud y número de hojas de esquejes durante tres semanas, área foliar y peso seco de esquejes a la cuarta semana. Después de esto los esquejes se sembraron en bolsas plásticas de 10 x 14 pulgadas calibre seis y se llevaron a invernaderos donde se realizó el aporque y demás manejo agronómico. Luego de cumplido el ciclo vegetativo de las plantas se midieron los rendimientos (peso y número de tubérculos para cada tratamiento. Se utilizó un diseño completamente al azar para cada ensayo (dosis de ANA y Hormonagro en cada variedad en un arreglo factorial 2 x 4 y 2 x 2 correspondientes al tipo de esqueje (axilar o apical y concentración de ANA (0, 5, 10 y 15 mg/l en el primer caso y (sin Hormonagro y con Hormonagro en el segundo caso. El porcentaje de supervivencia de esquejes fue superior al 90% en los axilares y mayor del 95% en los apicales. El Hormonagro redujo significativamente la supervivencia de esquejes y afectó considerablemente las otras variables. En los rendimientos no se observaron diferencias respecto al control por la aplicación de Hormonagro. El regulador ANA en dosis entre 5 y 10 mg/l mostró ser conveniente para el prendimiento de los esquejes. Se obtuvo mayor peso total de tubérculos en esquejes axilares de las variedades Capiro y Puracé, mientras que para la variable número total de tubérculos los esquejes axilares de las variedades Capiro y Clon 1 mostraron los mejores promedios. La mayor cantidad de tubérculos-semilla cosechados pesaron entre 3 y 21 g. La aplicación adecuada de la metodología propuesta puede ayudar a reducir costos en producción de semilla de papa fase 1 de buena calidad fitosanitaria.

  9. Determinación de algunos atributos de calidad de la variedad Fuji y sus mutantes al momento de cosecha Determination of some quality parameters of the Fuji cultivar and their mutants at harvest

    Directory of Open Access Journals (Sweden)

    Ana Cecilia Silveira

    2007-03-01

    Full Text Available Muchos trabajos demuestran que los productos vegetales no solamente son fuentes de energía y nutrientes sino también fuentes de compuestos conocidos como fitoquímicos, que juegan un importante papel en la prevención de enfermedades como el cáncer, afecciones cardiovasculares y neurodegenerativas. Por otro lado, el aumento en la producción de manzana, determina también un aumento de la producción destinada al procesamiento industrial. En este sentido el conocer el contenido de de ciertas sustancias como polifenoles, antocianinas permiten conocer su potencial de uso industrial, como por ejemplo para la elaboración de jugos. En base a esto los objetivos del presente trabajo fueron realizar una caracterización físico-química de tres variedades de manzana; una de ellas de cultivo tradicional y muy extendido en Brasil y las otras dos mutaciones de esta última, de reciente explotación comercial. Fueron medidos al momento de cosecha la firmeza de la pulpa, acidez titulable (AT, los sólidos solubles totales (SST, el índice de yodo-almidón, los parámetros CIE "L*", "a*" y "b*" del color, polifenoles, antocianinas y azúcares reductores totales y vitamina C. Según los resultados, la variedad Fuji Kiku presentó una mayor firmeza de pulpa, AT, SST y vitamina C. En relación al color, la variedad Fuji Suprema mostró una coloración roja más intensa y mayor contenido de antocianinas. No fueron encontradas diferencias en los polifenoles y azúcares reductores totales.Many studies have shown that fruits and vegetables are not only source of energy and nutrients, but also source of important components as phytochemicals which help preventing cancer, cardiovascular and neurodegenerative diseases. The increasing apple production has a direct effect on the production of apple processed products. Therefore, the knowledge about healthy substances as polyphenols and anthocyanins is important in order to determine the potential use of apple fruits

  10. Comercialización de semillas (variedades e híbridos importadas de pimentón Capsicum annuum L en Colombia en el periodo enero 1990-agosto 1994

    Directory of Open Access Journals (Sweden)

    Lema Nuñez Rosario M.

    1996-12-01

    Full Text Available

    All the companies that produce varieties of paprika are North American, and due to the strong economic force of 4 or 5, dominate the market. These oligopolies diferenciate the seeds in quality, brand and packaging and in this way restrict other new companies entering the market. Reputable brands of quality (Petoseed, Asgrow and Rogers NK are the sole producers of hybrid seeds. The difference in price of befween the hybrid paprika seed and the Californian wonder type is substantial. The Californian Wonder is a type of seed produced by multinational Petossed priced at $ 2'600.000 (kilo-70:4 times greater in price. The multinational receive a profitable margin 60 times greater and a detailed margin 65 times greater. 77% of the demand for the variety of paprika is found in Californian Wonder (62% and Keyston Resistant Giant (15% planted in Santander del Sur, Antioquia, Cundinamarca, Tolima and Valle del Cauca. The paprika hybrids (Pacific have only been utilised in the Valle region.

     

    Las variedades e híbridos de pimentón sólo representaron e11.5% del volumen total (648. 000 kilos y el 3.25 %  del valor de las importaciones de semillas de hortalizas. Las empresas productoras son norteamericanas y por la alta concentración del mercado en 4 ó 5 empresas, son oligopolios, al igual que los distribuidores exclusivos. Estos oligopolios diferencian las semillas en forma real (calidad y no real (marca, color del empaque y en esta forma impiden la entrada de nuevas empresas. Las marcas de reconocida calidad -Petoseed, Asgrow y Rogers NK, son las únicas que producen semilla híbrida para el mercado Colombiano. La diferencia en precios de la semilla híbrida con relación a la Variedad California Wonder es mayor (70.4 veces, respecto al precio recibido por la multinacional Petoseed ($2'600.000/kilo. El mayorista consigue un margen diferencial 60 veces más alto y el margen del detallista es 65 veces mayor. El 77 % de la demanda por

  11. La variedad, diversidad y características de la dieta en muestras de conveniencia de mujeres guatemaltecas Food variety, dietary diversity, and food characteristics among convenience samples of Guatemalan women

    Directory of Open Access Journals (Sweden)

    María José Soto-Méndez

    2011-08-01

    Full Text Available OBJETIVO: Comparar patrones y características de diversidad y variedad de la dieta de mujeres guatemaltecas. MATERIEL Y MÉTODOS: Se realizaron dos recordatorios de 24-horas en una muestra de conveniencia de 20 mujeres rurales y 20 estudiantes urbanas. Se calcularon puntajes de diversidad usando tres sistemas de grupos alimentarios. La variedad y diversidad, así como el origen y características de la dieta, se compararon entre ambos sitios. RESULTADOS: La variedad y diversidad en general fueron mayores en la muestra urbana en comparación con la muestra rural, dependiendo del número de días y del sistema de grupos de alimentos utilizados para la evaluación. La dieta rural fue predominantemente vegetal y compuesta de alimentos tradicionales no procesados. La dieta urbana estaba basada primordialmente en alimentos procesados. CONCLUSIÓN: Las consideraciones para crear estrategias de intervención para el mejoramiento de la dieta en el área rural dependen de la conservación de la selección de alimentos tradicionales.OBJECTIVE: To compare variety and diversity patterns and dietary characteristics in Guatemalan women. MATERIAL AND METHODS: Two non-consecutive 24-h recalls were conducted in convenience samples of 20 rural Mayan women and 20 urban students. Diversity scores were computed using three food-group systems.Variety and diversity scores and dietary origin and characteristics were compared between settings using independent t-test or Mann-Whitney-U-test. RESULTS: Dietary variety and diversity were generally greater in the urban sample when compared to the rural sample, depending on the number of days and food-group system used for evaluation.The diet was predominantly plant-based and composed of non-fortified food items in both areas.The rural diet was predominantly composed of traditional,non-processed foods. The urban diet was mostly based on non-traditional and processed items. CONCLUSION: Considerations of intervention strategies

  12. Hepatocellular carcinoma in Danish patients

    DEFF Research Database (Denmark)

    Stefansdottir, Jenna; Christensen, Erik; Schiødt, Frank Vinholt

    2017-01-01

    OBJECTIVE: Hepatocellular carcinoma (HCC) is a common cause of cancer, and most HCC patients have underlying cirrhosis. Retrospectively, we aimed to characterize patients with newly diagnosed HCC at a Danish hospital and to investigate survival and identify predictive factors for survival. METHODS...

  13. Glutathione treatment of hepatocellular carcinoma

    DEFF Research Database (Denmark)

    Dalhoff, K; Ranek, L; Mantoni, M

    1992-01-01

    This prospective study was undertaken to substantiate observations that glutathione (GSH) inhibits or reverses tumor growth in humans with hepatocellular carcinoma (HCC), a neoplasm with an extremely poor prognosis. Eight patients with biopsy-proven HCC not amenable to surgery were given 5 g of GSH...

  14. Mucoepidermoid Lung Carcinoma in Child

    African Journals Online (AJOL)

    usually includes asthma, pneumonia, atelectasis, middle lobe syndrome and pleural effusion. Recurrent pneumonia in the same region of the lung should raise clinical suspicion of an endobronchial lesion or mass, such as mucoepidermoid carcinoma.[1] Because MECs are most commonly found in the segmental or lobar ...

  15. PALLIATIVE TREATMENT OF OESOPHAGEAL CARCINOMA ...

    African Journals Online (AJOL)

    implant the Wallstent as it does to implant the plastic tube. 5 AIr Med ] 1999; 89: ... cancer unit at King George V Hospital, a total of 2 446 and 339 patients ... carcinoma (all were squamous cell type), evidence of .... Management of occluded.

  16. Syndromic aspects of testicular carcinoma

    NARCIS (Netherlands)

    Lutke-Holzik, MF; Sijmons, RH; Sleijfer, DT; Sonneveld, DJA; Hoekstra-Weebers, JEHM; van Echten-Arends, J; Hoekstra, HJ

    2003-01-01

    BACKGROUND. In patients with hereditary or constitutional chromosomal anomalies, testicular carcinoma can develop sporadically or on the basis of an underlying hereditary genetic defect. Greater knowledge of these genetic defects would provide more insight into the molecular pathways that lead to

  17. Gut metastasis from breast carcinoma.

    Science.gov (United States)

    Al-Qahtani, Mohammed S

    2007-10-01

    Breast cancer is the second most common malignancy in women. Common sites of metastases include the liver, lung, bone, and the brain. Metastases to the gastrointestinal tract are rare with patients presenting with small-bowel perforation, intestinal obstruction, and gastrointestinal bleeding. Here we report a case of a Saudi female presenting with invasive lobular carcinoma and ileo-cecal junction metastasis.

  18. Gut metastasis from breast carcinoma

    International Nuclear Information System (INIS)

    Al-Qahtani, Mohammad S.

    2007-01-01

    Breast cancer is the second most common malignancy in women. Common sites of metastases include the liver, lung, bone and the brain. Metastases to the gastrointestinal tract are with patients presenting with small-bowel perforation, intestinal obstruction and gastrointestinal bleeding. Here we report a case of Saudi female presenting with invasive lobular carcinoma and i leo-junction metastasis. (author)

  19. Breast metastases from rectal carcinoma

    Institute of Scientific and Technical Information of China (English)

    LI Jia; FANG Yu; LI Ang; LI Fei

    2011-01-01

    Metastases to the breast from extramammary neoplasms are very rare, constituting 2.7% of all malignant breast tumours. The most common primary tumor metastatic to the breast is primary breast cancer. Rectal cancer metastasizing to the breast is extremely rare. We report a case of aggressive rectal carcinoma with metastasis to the breast.

  20. Radiation-associated thyroid carcinoma

    International Nuclear Information System (INIS)

    Razack, M.S.; Sako, K.; Shimaoka, K.; Getaz, E.P.; Rao, U.; Parthasarathy, K.L.

    1980-01-01

    Since February, 1977, 735 patients having a history of receiving radiation therapy for benign conditions of the head and neck areas during infancy and childhood were examined in a thyroid screening program, and 159 patients were found to have palpable thyroid nodules. These patients had thyroid function tests and indirect laryngoscopy and were followed closely on suppression therapy consisting of either Cytomel or thyroid extract. Thyroidectomy was advised in those in whom the nodules persisted or increased in size. This study documents the incidence of carcinoma and other benign pathological changes and postoperative complications in this group of patients. So far, 49 patients had either a lobectomy with isthmusectomy or a total thyroidectomy. Eleven patients were found to have carcinoma (six had papillary, fou had mixed papillary and follicular, and one had follicular carcinoma). Three patients had a therapeutic modified neck dissection following the documentaion of microscopic involvement of paratracheal lymph nodes. A high incidence of chronic nonspecific thyroiditis, postradiation fibrosis, and follicular adenomas were also found in these patients. Three patients had temporary hypocalcemia (two weeks) and none had wound infection, hematoma, or postoperative nerve palsy. Of patients who had surgical resection, 22.4% showed thyroid carcinoma

  1. Radiation-associated thyroid carcinoma

    International Nuclear Information System (INIS)

    Razack, M.S.; Sako, K.; Shimaoka, K.; Getaz, E.P.; Rao, U.; Parthasarathy, K.L.

    1980-01-01

    Since February 1977, 735 patients having a history of receiving radiation therapy for benign conditions of the head and neck areas during infancy and childhood were examined in a thyroid screening program, and 159 patients were found to have palpable thyroid nodules. These patients had thyroid function tests and indirect laryngoscopy and were followed closely on suppression therapy consisting of either Cytomel or thyroid extract. Thyroidectomy was advised in those in whom the nodules persisted or increased in size. This study documents the incidence of carcinoma and other benign pathological changes and postoperative complications in this group of patients. So far, 49 patients had either a lobectomy with isthmusectomy or a total thyroidectomy. Eleven patients were found to have carcinoma (six had papillary, four had mixed papillary and follicular, and one had follicular carcinoma). Three patients had a therapeutic modified neck dissection following the documentation of microscopic involvement of paratracheal lymph nodes. A high incidence of chronic nonspecific thyroiditis, postradiation fibrosis, and follicular adenomas were also found in these patients. Three patients had temporary hypocalcemia (two weeks) and none had wound infection, hematoma, or postoperative nerve palsy. Of patients who had surgical resection, 22.4% showed thyroid carcinoma

  2. Bladder carcinoma. Apport MR imaging

    International Nuclear Information System (INIS)

    Roy, C.; Spittler, G.; Jacqmin, D.; Morel, M.

    1991-01-01

    Bladder carcinoma is the second most commun cause of urogenital tumor. It is suspected by abdominal ultrasound and prouved by cystoscopy with biopsy. At present, MR Imaging is the most accurate diagnostic modality for loco-regional staging. Urography is still useful to appreciate urinary tract [fr

  3. Metastatic renal cell carcinoma management

    Directory of Open Access Journals (Sweden)

    Flavio L. Heldwein

    2009-06-01

    Full Text Available PURPOSE: To assess the current treatment of metastatic renal cell carcinoma, focusing on medical treatment options. MATERIAL AND METHODS: The most important recent publications have been selected after a literature search employing PubMed using the search terms: advanced and metastatic renal cell carcinoma, anti-angiogenesis drugs and systemic therapy; also significant meeting abstracts were consulted. RESULTS: Progress in understanding the molecular basis of renal cell carcinoma, especially related to genetics and angiogenesis, has been achieved mainly through of the study of von Hippel-Lindau disease. A great variety of active agents have been developed and tested in metastatic renal cell carcinoma (mRCC patients. New specific molecular therapies in metastatic disease are discussed. Sunitinib, Sorafenib and Bevacizumab increase the progression-free survival when compared to therapy with cytokines. Temsirolimus increases overall survival in high-risk patients. Growth factors and regulatory enzymes, such as carbonic anhydrase IX may be targets for future therapies. CONCLUSIONS: A broader knowledge of clear cell carcinoma molecular biology has permitted the beginning of a new era in mRCC therapy. Benefits of these novel agents in terms of progression-free and overall survival have been observed in patients with mRCC, and, in many cases, have become the standard of care. Sunitinib is now considered the new reference first-line treatment for mRCC. Despite all the progress in recent years, complete responses are still very rare. Currently, many important issues regarding the use of these agents in the management of metastatic renal cancer still need to be properly addressed.

  4. Comportamiento fisiológico de la pera variedad Triunfo de Viena (Pyrus communis L. durante el período poscosecha Physiological performance of pears (Pyrus communis L., cv. Triunfo de Viena during postharvest period

    Directory of Open Access Journals (Sweden)

    Alfonso Parra-Coronado

    2006-04-01

    Full Text Available La pera variedad Triunfo de Viena es una fruta producida en Colombia y actualmente no se dispone de una red de frío para su manejo poscosecha. El objetivo de este trabajo fue establecer el comportamiento fisiológico de la pera variedad Triunfo de Viena en tres condiciones de temperatura y humedad relativa: 3ºC y 85%, 11ºC y 80%, 18ºC y 75%. La pera variedad Triunfo de Viena es un fruto climatérico, cuyo punto de máxima intensidad respiratoria puede desplazarse en el tiempo dependiendo de las condiciones de almacenamiento. Para las condiciones estudiadas, el climaterio se presentó en el día 22 (35,87 mg CO2 kg-1 h-1, en el día 36 (28,59 mg CO2 kg-1 h-1 y en el día 93 (15,72 mg CO2 kg-1 h-1 del almacenamiento, para las temperaturas de 18ºC, 11ºC y 3ºC respectivamente. La pérdida de peso presentó una relación lineal y directa respecto al tiempo de almacenamiento, siendo mayor con temperaturas de 18ºC y 11ºC. La acidez titulable y el pH no presentan grandes variaciones durante el almacenamiento. La intensidad respiratoria, la pérdida de peso, la relación SST/AT y la firmeza de la pulpa, son las características que representan mejor la evolución de la madurez de las peras variedad Triunfo de Viena.The pear cv. Triunfo de Viena is a fruit produced in Colombia, but at present time there is no cool chamber to handle it. The objective of this work was to determine the pear's physiological performance under three conditions of temperature and relative humidity: 3ºC and 85%, 11ºC and 80%, 18ºC and 75%. The pear cv. Triunfo de Viena is a climacterically fruit, which its maximum point of respiratory rate could vary according to the storage conditions. For the evaluated conditions, the number of days required to reach the climacteric-like peak was 22 (35,87 mg CO2 kg-1 h-1, 36 (28,59 mg CO2 kg-1 h-1 and 93 (15,72 mg CO2 kg-1 h-1, at temperatures of 18ºC, 11ºC and 3ºC respectively. The weight loss presented a linear and direct

  5. Evaluación químico bromatológica de las variedades Yurac Llajum, Gello Llajum y Yurac Checche de Smallanthus Sonchifolius (Poepp & Endl).H. Robinson (Yacón) procedente de Puno

    OpenAIRE

    Ramos Zapana, Rubén; Arias Arroyo, Gladys

    2014-01-01

    Las variedades Yurac llajum, Qello llajum y Yurac checche de la especie Smallanthus sonchifolius (Poepp & Endl) (Yacón), procedente de la provincia de Sandia del Departamento de Puno, se desarrollan entre 1500 a 3000 msnm. Conocidas como “yacón”, “yakuma”, “llaqón”, “llacun” o “llacuma” en quechua; en aymara “aricoma” o “aricuma“; en español “Yacón”, “Jacón”, “llacón”, “arboloco”, “Puhe”, “jicama”, “jíquima”, “jikima” o “jiquimilla”. Estas raíces tuberosas de sabor dulce y refrescante, de asp...

  6. Evaluación de la selección H, mediante hermanos completos y su síntesis, para resistencia a Diatraea spp. de dos variedades de maíz

    Directory of Open Access Journals (Sweden)

    López John Jairo

    1986-12-01

    Full Text Available El criterio de selección fue el menor número de orificios de salida del insecto, en pares de plantas, hembra y macho, éstas, últimas también auto polinizadas. En infestación natural, se estudió el efecto del sistema de selección en el daño causado por el insecto, y en los caracteres correlacionados: rendimiento, días a floración femenina, prolificidad, altura de mazorca y estatura de planta. Se determinó el avance por ciclo de selección para cada uno de estos caracteres por el método de la regresión, tomando el porcentaje relativo de cada carácter con respecto a la variedad original, para cada uno de los niveles de síntesis en las dos variedades. Se obtuvieron materiales derivados en los que aparentemente se fueron acumulando genes para otros caracteres relacionados con rendimiento.An evaluation of the H selection, through full-sib in them and their synthesis, was carry out, for resistance to Diatraea spp., in two corn varieties (ETO and DIACOL V. 351. The judgment of selection was the less number of holes from the insect exit, in pairs of plants, male and female, these last ones self pollennized. Under natural infestation, the effect of the selection system was studied in the damage caused by the insect, and in the correlate yield character, the femenine floration days, prolificity, ear corn height and plant stature. The advance was determined by the selection cycle of each one ot these characters under the regretion method, taking a relative percentage of each character in respect to the original variety, for each one of the synthesis level. Derived materials were obtained in which genes for the resistance to Diatraea spp., apparently were acumulated, and indirectly genes were qathered for other characters related to the yielding.

  7. Influencia del retraso en el procesado de las aceitunas tras la recolección, en parámetros físico-químicos y nutricionales del aceite de oliva de la variedad Racimilla

    Directory of Open Access Journals (Sweden)

    Sánchez-Gimeno, A. C.

    2009-09-01

    Full Text Available The aim of this work was to study how the delay time between harvesting and processing affects the physicochemical and nutritional parameters of Racimilla olive (Olea europaea L. oil. The physicochemical parameters (titratable acidity, peroxide value, coefficients of specific extinction and pigments content changed remarkably. The nutritional parameters such as fatty acids profile, total phenols and vitamin E also suffered a change with the delay in processing. Physicochemical and nutritional parameter modifications were detrimental to olive oil quality. In conclusion, a delay in processing after harvesting is not efficient to preserve the physicochemical and nutritional quality of the olive oil from the Racimilla variety.El objetivo de este trabajo fue estudiar cómo afecta el tiempo que transcurre entre la recolección y procesado en los parámetros físico-químicos y nutricionales del aceite de oliva (Olea europaea L. de la variedad aragonesa Racimilla. Los parámetros físico-químicos (acidez, índice de peróxidos, coeficientes de extinción y contenido en pigmentos se modificaron visiblemente. Los parámetros nutricionales como el perfil de ácidos grasos, contenido en fenoles totales y vitamina E sufrieron también un cambio al retrasar el procesado. Tanto las modificaciones en los parámetros físico-químicos como en los nutricionales fueron negativas desde el punto de vista de la calidad del aceite. A la vista de los resultados, el retraso en el procesado tras la recolección es ineficiente para preservar la calidad físico-química y nutricional del aceite de oliva de la variedad Racimilla.

  8. Análisis mediante HPLC de la fracción fenólica del aceite de oliva virgen de la variedad Arbequina. Relación con la medida del amargor K225 y la estabilidad

    Directory of Open Access Journals (Sweden)

    Uceda, M.

    2000-10-01

    Full Text Available Phenolic compounds have a high importance because of their effect on shelf life and sensorial characteristics of virgin olive oil. In this paper, the phenolic fraction of Arbequina virgin olive oils has been characterized by HPLC. Bitterness index K225, total phenols and autoxidation stability have been evaluated for olive oil samples. From the phenolic compounds separated using HPLC method, one of then (tr: 34,49 min was close correlated both with bitterness K225 and oil stability Rancimat at 98ºC. The regression coefficients, with high significance p<0,001, were r: 0.974 and r: 0.918 respectively. Phenolic compound responsible of bitterness K225 and oil stability has been found for the Arbequina virgin olive oils.Los compuestos fenólicos tienen gran importancia por su efecto sobre la estabilidad y las características sensoriales de los aceites de oliva vírgenes. En este trabajo se ha analizado mediante cromatografía líquida de alta resolución la fracción fenólica de los aceites de oliva de la variedad Arbequina. Se han determinado el amargor K225, el contenido de polifenoles totales y la estabilidad de los aceites. De los compuestos fenólicos separados por HPLC, existe uno de ellos, con un tr: 34,49 min que presenta un elevado nivel de correlación con el amargor K225 y la estabilidad Rancimat a 98ºC, presentando unos coeficientes de regresión altamente significativos, p<0.001, de r: 0.974 y r: 0.918 respectivamente. Por tanto, se ha establecido el principal responsable del amargor K225 y la estabilidad oxidativa de los aceites de la variedad Arbequina.

  9. Squamous Cell Carcinoma In Situ Overlying Merkel Cell Carcinoma.

    Science.gov (United States)

    McGowan, Maria A; Helm, Matthew F; Tarbox, Michelle B

    2016-11-01

    Merkel cell carcinoma (MCC) is a rare and aggressive cutaneous neoplasm that has exhibited an exponential increase in incidence in the past 3 decades. Combined MCC and cutaneous squamous cell carcinoma (SCC/MCC) is an uncommon variant of MCC that exhibits worse prognosis than pure MCC. To describe the clinical presentation, dermoscopy, and histology of an unusual subtype of combined SCC/MCC. A 73-year-old white woman presented with an ulcerated and violaceous 10-mm plaque on her right jawline that had been present for 2 to 3 months. On dermoscopy, the lesion was predominantly milky pink to red with peripheral crusting and large-caliber polymorphous vessels. Histology revealed SCC in situ above and adjacent to MCC. The tumor was excised with clear margins, and sentinel lymph node scintography was negative for nodal involvement. © The Author(s) 2016.

  10. Physicochemical characteristics and fatty acids profile of olive oils from different varieties of olive tree in southern Minas Gerais - Brazil / Características físico-químicas e perfil de ácidos graxos de azeites obtidos de diferentes variedades de oliveiras introduzidas no Sul de Minas Gerais - Brasil

    Directory of Open Access Journals (Sweden)

    Michel Cardoso de Angelis Pereira

    2010-04-01

    Full Text Available This work had as an objective, to analyze, both physically and chemically, five olive tree varieties kept in the EPAMIG Germplasm Bank at the Experimental Farm, in the town of Maria da Fé, MG. Physical characteristics of the fruits and seeds (weight, diameter and length and some chemical characteritics of the oils extracted from five varieties (acidity, iodine, saponification, peroxide indices and the fatty acid profile were evaluated. The Negroa variety presented an average percent of lipids (28.2% significantly higher than the others (p Este trabalho teve por objetivo analisar, física e quimicamente, cinco variedades de oliveiras mantidas no banco de germoplasma pela EPAMIG, na Fazenda Experimental no município de Maria da Fé, MG. Foram avaliadas características físicas dos frutos e sementes (peso, diâmetro e comprimento e algumas características químicas dos azeites extraídos de cinco variedades (índice de acidez, iodo, saponificação, peróxidos e perfil de ácidos graxos. A variedade Negroa apresentou percentual médio de lipideos (28,2% significativamente maior que as demais (p < 0,05. Dentre as variedades estudadas a Negroa e JB1 apresentaram maior produtividade e valores de acidez, índice de saponificação, iodo e peróxidos mais compatíveis com as normas da ANVISA (2005 e o Codex Alimentarius (2003. Todas as variedades cultivadas em Maria da Fé apresentaram conteúdos de ácido oléico dentro do recomendado pelo Codex alimentarius e significativamente maior que o teor de ácido oléico do azeite comercial extra virgem analisado (p < 0,05. O perfil de ácidos graxos encontrado demonstrou que todas as variedades (JB1, Negroa, Ascolano 315, 0025 e 0004 estão com seus valores adequados para os principais grupos de ácidos graxos, quando comparados com a legislação. Os resultados indicam que das variedades analisadas a Negroa e JB1 apresentam melhor potencial para utilização na produção de azeite de oliva.

  11. Mucoepidermoid carcinoma of lung masquerading as urothelial carcinoma of bladder

    Science.gov (United States)

    Graham, Donna M.; O’Connor, Kate M.; Hinchion, John; Coate, Linda E.; Burke, Louise; Power, Derek G.

    2013-01-01

    Background Mucoepidermoid carcinoma (MEC) of the lung is a rare subtype of non-small cell lung cancer. There is no consensus regarding optimal management for this disease. Case report We present a case of MEC of the lung in a 75 year-old female with a history of superficial urothelial carcinoma of the bladder. The patient was found to have an asymptomatic lung mass. Initial biopsy suggested metastatic recurrence of urothelial carcinoma and therefore, cisplatin and gemcitabine chemotherapy was administered prior to surgical resection. Pathological analysis of the resected specimen confirmed a diagnosis of stage IIIA MEC with focal high-grade features including transitional cell-like areas. Adjuvant radiotherapy was administered due to a positive microscopic resection margin. No chemotherapy was given due to lack of supporting data. The patient developed widespread metastatic disease 3 months following completion of radiotherapy and died 1 month later. Conclusion This case demonstrates the possibility of dual pathology in cases where metastatic disease is suspected. The use of small tissue samples may complicate diagnosis due to the heterogeneity of malignant tumours. PMID:24936321

  12. Merkel cell carcinoma: is this a true carcinoma?

    Science.gov (United States)

    Jankowski, Marek; Kopinski, Piotr; Schwartz, Robert; Czajkowski, Rafal

    2014-11-01

    Recent years have brought an enhanced understanding of Merkel cell carcinoma (MCC) biology, especially with regard to the Merkel cell polyoma virus as a causative agent. Differences between Merkel cell polyomavirus-positive and Merkel cell polyomavirus-negative MCC in morphology; gene expression, miRNA profiles and prognosis have been reported. Origin of MCC is controversial. Presence of neurosecretory granules has suggested that these carcinomas originate from one of the neurocrest derivatives, most probably Merkel cells; the name Merkel cell carcinoma is now widely accepted. Expression of PGP 9.5, chromogranin A and several neuropeptides, initially regarded as specific markers for neural and neuroendocrine cells, has recently been shown in a subset of lymphomas. MCC commonly expresses terminal deoxynucleotidyl transferase and PAX5. Their co-expression under physiologic circumstances is restricted to pro/pre-B cells and pre-B cells. These findings lead to the hypothesis by zur Hausen et al. that MCC originates from early B cells. This review was intended to critically appraise zur Hausen's hypothesis and discuss the possibility that MCC is a heterogenous entity with distinct subtypes. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  13. Invasive lobular carcinoma with extracellular mucin as a distinct variant of lobular carcinoma: a case report

    OpenAIRE

    Haltas, Hacer; Bayrak, Reyhan; Yenidunya, Sibel; Kosehan, Dilek; Sen, Meral; Akin, Kayihan

    2012-01-01

    Abstract The differences between invasive lobular and ductal carcinomas affect the diagnostic and therapeutic management for patients with breast cancer. In most cases, this can be accomplished because of distinct histomorphologic features. However, occasionally, this task may become quite difficult, in particular when dealing with the variants of infiltrating lobular carcinoma. Lobular carcinoma has been considered a variant of mucin-secreting carcinoma with only intracytoplasmic mucin. The ...

  14. Produção de fôlhas de diferentes variedades de amoreiras, durante o período de formação das mudas nos sistemas de cepo e fuste Leaf production of different mulberry tree varieties, during the period of seedlings formation by the systems "cepo" and "fuste"

    Directory of Open Access Journals (Sweden)

    António Castilho Rúbia

    1966-01-01

    Full Text Available São apresentados resultados experimentais da produção de fôlhas em amoreiras de variedades comuns, durante o período de formação das mudas, com os sistemas denominados de cepo e fuste, em duas regiões, Limeira e Tatuí, do planalto paulista. Os resultados quanto à produção de fôlhas, em dois anos em cada região, permitiram as conclusões: Em Limeira, para a variedade Calabreza, o sistema de fuste foi muito superior ao de cepo. Para as variedades Fernão Dias e Lopes Lins, o sistema de fuste foi também superior, porém, de forma menos acentuada. Em Tatuí, no caso das variedades Calabreza e Fernão Dias, o sistema de cepo mostrou-se, ao contrário, mais produtivo. Para a variedade Lopes Lins, não houve diferença entre os dois sistemas de cultivo experimentados.In this paper the experimental results are reported on trials with leaf production carried out with common varieties of mulberry trees (Morus albaduring the period of seedlings formatioin by the systems known as "cepo" and "fuste", in two regions of the Paulista Plateau, namely Limeira and Tatuí. Regarding leaf production, in two years, for the regions, results allowed to reach the following conclusions: In Limeira, for the variety Calabreza, the system "fuste" showed highly superior to that named "cepo". As to the varieties Fernão Dias and Lopes Lins, the "fuste" system was also very satisfactory but not in a remarkable manner. In Tatui, as for the varieties Calabreza and Fernão Dias, the "cepo" system, on the contrary, showed to be more productive. Considering the variety Lopes Lins, there was not found any difference between the two tested cultivation systems.

  15. Genetics Home Reference: head and neck squamous cell carcinoma

    Science.gov (United States)

    ... and neck squamous cell carcinoma Head and neck squamous cell carcinoma Printable PDF Open All Close All Enable Javascript ... Consumer Version: Overview of Mouth, Nose, and Throat Cancers Orphanet: Squamous cell carcinoma of head and neck University of Michigan ...

  16. Thyroid carcinomas of Belarussian children

    International Nuclear Information System (INIS)

    Bauchinger, M.

    1999-01-01

    The incidence of thyroid carcinoma increases significantly following exposure to ionizing irradiation. However, the mechanisms of radiation-induced tumorigenesis at the molecular and chromosomal levels have not been identified. In order to gain some indication of the processes affecting the thyroid epithelium, cytogenetic and molecular genetic investigations were performed on childhood thyroid carcinomas that developed after the Chernobyl nuclear accident in Belarussia, and on secondary thyroid tumours that developed after radiotherapy. At the cytogenetic level, the radiation-induced tumours were shown to have an increased frequency of translocations, multiple and complex chromosome aberrations, and novel breakpoints for structural chromosome aberrations. At the molecular level, different alterations of the RET protooncogene were detected in 65% of the Belarussian tumours. (orig.) [de

  17. Current Cervical Carcinoma Screening Guidelines

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    Megan J. Schlichte

    2015-05-01

    Full Text Available A formidable threat to the health of women, cervical carcinoma can be prevented in many cases with adequate screening. The current guidelines for cervical carcinoma screening were created as joint recommendations of the American Cancer Society (ACS, the American Society for Colposcopy and Cervical Pathology (ASCCP and the American Society for Clinical Pathology (ASCP in 2012, and later accepted and promoted by the American Congress of Obstetricians and Gynecologists (ACOG. The 2012 recommendations underscore the utility of molecular testing as an adjunct to cytology screening for certain women and provide guidance to clinicians based on different risk-benefit considerations for different ages. This manuscript will review screening techniques and current recommendations for cervical cancer screening and human papilloma virus (HPV testing, as well as possible future screening strategies.

  18. Sebaceous carcinoma. Presenting a case

    International Nuclear Information System (INIS)

    Plaza, Jaime; Salinas, Ana; Cabrera, Raul; Vargas, Martha; Caicedo, Eduardo

    2002-01-01

    Patient of feminine sex of 65 years of age with tumor of approximately 1.5 cm of diameter, located in the right palpebral region, being put under ample exeresis of a tumor more pastia, whose anatomopathology result revealed sebaceous carcinoma with free edges. This is a rare malignant carcinoma that originates in perioculars sebaceous glands like the glands of Meibomio that affects the superior flicker. Clinically it appears like a small nodule, of small growth and its diagnose is based on a high degree of suspicion in any chronic process of the flicker. The selection processing is the surgery, the x-ray, radiotherapy is useful in the postoperating attention and like palliative therapy. (The author)

  19. Intraoperative radiotherapy for pancreatic carcinoma

    International Nuclear Information System (INIS)

    Nishimura, Akira; Iida, Koyo; Sato, Shigehiro; Sakata, Suo

    1986-01-01

    Twenty-eight patients with pancreatic carcinoma, 23 (82 %) of whom had Stage III or IV, received intraoperative radiotherapy (IOR) with curative or non-curative surgery. Electron beams (10 to 18 MeV) with doses of 20 to 40 Gy were delivered to the tumor. Eight of 26 patients with unresectable tumor had postoperative external irradiation of 10.5 to 50 Gy. Abdominal and back pain relief was achieved after IOR in 12 (71 %) and in 6 (60 %) of the 26 patients, respectively. Appetite was promoted in 11 patients. In the case of unresectable carcinoma, survival time tended to prolong in the 8 patients receiving both IOR and postoperative external irradiation. One patient developed perforation of the colon probably caused by IOR. (Namekawa, K.)

  20. The problem of multiple carcinomas

    International Nuclear Information System (INIS)

    Kegel, W.; Schmieder, A.

    1982-01-01

    This retrospective study reports on the occurrence of multiple carcinomas among the patients of our Department of Radiotherapy. Examination of 1290 patients during 1978 to 1980 showed in 76 cases (5.8%) simultaneously or successively secondary or tertiary tumours. These multiple tumours were most frequent in the mammary gland, in the female genital organs and in the respiratory system. Women had an incidence which was double of that displayed by men. Diagnosis and therapy of malignant tumours must always consider the possibility of multiplicity of carcinomas, either simultaneously or succesively, appearing spontaneously or as a result of iatrogenic influences. This applies in particular to the multicentric and bilateral occurrence of the early types of cancer of the female breast. (orig.) [de

  1. Gene therapy of thyroid carcinoma

    International Nuclear Information System (INIS)

    Zheng Wei; Tan Jian

    2007-01-01

    Normally, differentiated thyroid carcinoma(DTC) is a disease of good prognosis, but about 30% of the tumors are dedifferentiate, which are inaccessible to standard therapeutic procedures such as 'operation, 131 I therapy and thyroid hormone'. Both internal and abroad experts are researching a new therapy of dedifferentiated thyroid carcinoma--gene therapy. Many of them utilize methods of it, but follow different strategies: (1) transduction of the thyroid sodium/iodide transporter gene to make tissues that do not accumulate iodide treatable by 131 I therapy; (2) strengthening of the anti-tumor immune response; (3) suicide gene therapy; (4) depression the generation of tumor cells; (5) gene therapy of anti- vascularization. (authors)

  2. Photodynamic therapy for basal cell carcinoma.

    Science.gov (United States)

    Fargnoli, Maria Concetta; Peris, Ketty

    2015-11-01

    Topical photodynamic therapy is an effective and safe noninvasive treatment for low-risk basal cell carcinoma, with the advantage of an excellent cosmetic outcome. Efficacy of photodynamic therapy in basal cell carcinoma is supported by substantial research and clinical trials. In this article, we review the procedure, indications and clinical evidences for the use of photodynamic therapy in the treatment of basal cell carcinoma.

  3. Merkel cell carcinoma in an immunosuppressed patient.

    Science.gov (United States)

    Góes, Heliana Freitas de Oliveira; Lima, Caren Dos Santos; Issa, Maria Cláudia de Almeida; Luz, Flávio Barbosa; Pantaleão, Luciana; Paixão, José Gabriel Miranda da

    2017-01-01

    Merkel cell carcinoma is an uncommon neuroendocrine carcinoma with a rising incidence and an aggressive behavior. It predominantly occurs in older patients, with onset occurring at a mean age of 75-80 years. Recognized risk factors are ultraviolet sunlight exposure, immunosuppression, and, more recently, Merkel cell polyomavirus. We report a case of Merkel cell carcinoma in a young HIV positive patient with Merkel Cell polyomavirus detected in the tumor.

  4. Pulmonary squamous cell carcinoma following head and neck squamous cell carcinoma: Metastasis or second primary?

    NARCIS (Netherlands)

    Geurts, Tom W.; Nederlof, Petra M.; van den Brekel, Michiel W. M.; van't Veer, Laura J.; de Jong, Daphne; Hart, August A. M.; van Zandwijk, Nico; Klomp, Houke; Balm, Alfons J. M.; van Velthuysen, Marie-Louise F.

    2005-01-01

    Purpose: To distinguish a metastasis from a second primary tumor in patients with a history of head and neck squamous cell carcinoma and subsequent pulmonary squamous cell carcinoma. Experimental Design: For 44 patients with a primary squamous cell carcinoma of the head and neck followed by a

  5. Palliative surgery for pancreatic carcinoma

    International Nuclear Information System (INIS)

    Khan, I.M.; Aurangzeb, M.

    2010-01-01

    To evaluate the role of palliative surgical treatment in patients with advanced pancreatic carcinoma. Study Design: Case series. Place and Duration of Study: Surgical Ward of Khyber Teaching Hospital, Peshawar, from January 2005 to January 2009. Methodology: The study included patients with pancreatic carcinoma admitted with advanced, unresectable carcinoma of the pancreas. Patients with resectable tumours and with previous history of gastric or biliary surgery were excluded. Palliative procedures were performed after assessment of the tumour and its confirmation as unresectable on ultrasound and CT scan + ERCP. Postoperatively all patients were referred to oncologist. Complications and mortality were noted. Results: There were 40 patients, including 24 males and 16 females with mean age 58.72 +- 6.42 years. The most common procedure performed was triple bypass in 21 (52.50%) patients followed by choledocho-, cholecysto-, hepaticoand gastro-jejunostomy in various combinations. Wound infection occurred in 7 patients and was more common in patients with co-morbidities. Biliary leakage occurred in 03 patients. Postoperative cholangitis occurred in 3 patients while 7 patients had minor leak from the drain site. Four patients developed UTI, while 5 patients had signs of delayed gastric emptying. Two patients had upper gastrointestinal bleeding. Three patients died due to septicemia and multiple organs failure. Rest of the patients were discharged in stable state. The mean hospital stay was 8.40 +- 3.48 days and median survival was 7.72 +- 2.39 months. Conclusion: Surgical palliation for the advanced carcinoma pancreas can improve the quality of life of patients and is associated with minimum morbidity and mortality. (author)

  6. Carcinoma caecum - a rare presentation

    International Nuclear Information System (INIS)

    Ali, T.; Mudasser, S.; Mudsser, S.; Sarwar, M.

    2010-01-01

    Caecal and right sided colonic cancers mostly present with fatigue, weakness and iron deficiency anemia. Such tumours rarely perforate posteriorly and involve the retroperitoneum. We report a case of an old Omani lady who came with insidious sign and symptoms of perforated caecum leading to retroperitoneal collection and necrotizing fasciitis of abdominal wall due to carcinoma of caecum. She underwent surgery but despite active intervention, she died because of septicemic shock. (author)

  7. Primary Carcinoma of the Gallbladder

    OpenAIRE

    Paraskevopoulos, John A.; Dennison, Ashley R.; Johnson, Alan G.

    1991-01-01

    Carcinoma of the gallbladder is a relatively rare malignancy which is difficult to diagnose. The advent of improved imaging methods and the expansion of interventional radiology however, combined with advances in surgical technique, has produced a change in attitude towards this tumour. The available world literature since 1960 has been reviewed and is presented in this article. However, whilst the outlook for diagnosis and treatment is improving, clearly the association with cholelithiasis (...

  8. Carcinoma gástrico

    Directory of Open Access Journals (Sweden)

    Víctor H. Covelli Otero

    1963-01-01

    Full Text Available 755 cases of gastric carcinoma were studied that had been treated at the Hospital San Juan de Dios, of Bogotá, from 1953 to 1960. At the time of consultation the disease was in an advance stage; it appears that incidence is high if a comparison is made with other published studies, and the disease is on the increase; its higher occurrence in men is confirmed, predominating in men between the ages of 40 to 60 years. Attention is called to the four principal symptoms: pain, anorexia, vomiting and loss of weight; and the high operative mortality' is emphasized. 1. It is necessary to insist on campaings that will make feasible the earlier diagnosis of gastric carcinoma. 2. Patients should be more carefully evaluated surgically. 3. Intestinal parasitism should not be a definitive diagnosis in our midst, when a patient complains of epigastric pain, or anorexia, or vomiting, or loss of weight. 4. No relationship was found between the blood group distribution and gastric carcinoma. 5. The social welfare service should establish a better follow up (control over the patients operated on.

  9. Microcystic Variant of Urothelial Carcinoma

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    Anthony Kodzo-Grey Venyo

    2013-01-01

    Full Text Available Background. Microcystic variant of urothelial carcinoma is one of the new variants of urothelial carcinoma that was added to the WHO classification in 2004. Aims. To review the literature on microcystic variant of urothelial carcinoma. Methods. Various internet search engines were used to identify reported cases of the tumour. Results. Microscopic features of the tumour include: (i Conspicuous intracellular and intercellular lumina/microcysts encompassed by malignant urothelial or squamous cells. (ii The lumina are usually empty; may contain granular eosinophilic debris, mucin, or necrotic cells. (iii The cysts may be variable in size; round, or oval, up to 2 mm; lined by urothelium which are either flattened cells or low columnar cells however, they do not contain colonic epithelium or goblet cells; are infiltrative; invade the muscularis propria; mimic cystitis cystica and cystitis glandularis; occasionally exhibit neuroendocrine differentiation. (iv Elongated and irregular branching spaces are usually seen. About 17 cases of the tumour have been reported with only 2 patients who have survived. The tumour tends to be of high-grade and high-stage. There is no consensus opinion on the best option of treatment of the tumour. Conclusions. It would prove difficult at the moment to be dogmatic regarding its prognosis but it is a highly aggressive tumour. New cases of the tumour should be reported in order to document its biological behaviour.

  10. Metastatic syringoid eccrine carcinoma of the nipple

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    Ballardini P

    2012-07-01

    Full Text Available Pierluigi Ballardini,1 Guido Margutti,1 Massimo Pedriali,2 Patrizia Querzoli21Department of Internal Medicine, Hospital of the Delta, Lagosanto, 2Institute of Pathology, S Anna Hospital, Ferrara, ItalyAbstract: Syringoid eccrine carcinoma is a very rare skin tumor. Herein we describe a 72-year-old male patient presenting with a syringoid eccrine carcinoma of the nipple with associated axillary lymph node metastases. Surgery associated with adjuvant radiotherapy was performed. To the best of our knowledge, this is the first case of syringoid eccrine carcinoma of the nipple ever reported.Keywords: syringoid carcinoma, nipple, axillary metastases, radiotherapy

  11. Warty Carcinoma Penis: An Uncommon Variant

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    Sushma Thapa

    2017-01-01

    Full Text Available Penile carcinoma frequency varies widely in different parts of the world and comprises 1–10% of all the malignancies in males. Majority of the cases of penile carcinoma are squamous cell carcinoma of penis comprising 60% to 70% of all cases. Warty carcinoma of penis is an unusual neoplasm and a variant of penile squamous cell carcinoma comprising 5%–10% of all the variants. The other histological variants include basaloid, verrucous, papillary, sarcomatous, mixed, and adenosquamous carcinoma. The various histological entities with an exophytic papillary lesions including warty carcinoma are together referred to as the “verruciform” group of neoplasms. The warty carcinoma has to be differentiated from these lesions and is typically distinguished by histological features of hyperkeratosis, arborescent papillomatosis, acanthosis, and prominent koilocytosis with nuclear pleomorphism. We present a case of 65-year-old male with growth measuring 6×4 cm in the penis who underwent total penectomy and was diagnosed as warty carcinoma penis.

  12. Circumscribed breast carcinoma: Mammographic and sonographic findings

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Soo Young; Lee, Yul; Park, Ki Soon; Lee, Ke Sook [College of Medicine, Hallym University, Seoul (Korea, Republic of)

    1992-03-15

    Circumscribe breast cancer is a well demarcated mass with or without a lobulated border simulating a benign tumor like fibroadenoma on mammography or breast US and is reported as approximate 10% of the incidence among primary breast carcinoma(1.2). Pathologically medullary, colloid, papillary, intraductal and rarely invasive ductal carcinomas are included in this group which show the less intense desmoplastic reaction than the scirrhous type cancer, resulting in the most favorable prognosis of all carcinoma of the breast. Among 214 primary breast carcinoma during the past 8 years, we experienced 6 case of pathologically proven circumscribed breast cancer(2 cases of medullary carcinoma, 1 of colloid carcinoma, 1 of intracystic papillary carcinoma, 2 of comedo type intraductal carcinoma). Clinically 2 cases showed bloody nipple discharge from one hole of a unilateral nipple orifice. Mammography showed a well circumscribed nodule with or without partial lobular contour and no pathologic calcification. Breast sonographic findings were a well defined heterogeneous hypoechoic nodule with weak posterior acoustic enhancement. Characteristically a thin dilated lactiferous duct between the mass and the nipple on US could be detected in 2 cases which clinically was accompanied by bloody nipple discharge. Although the mammographic criteria is promising as benign tumor, the possibility of circumscribed as benign tumor, the possibility of circumscribed breast carcinoma must be considered in heterogeneous hypoechoic nodule with weak posterior acoustic enhancement in US, especially in the presence of a dilated lactiferous duct between the mass and the nipple with bloody nipple discharge.

  13. EPIDEMIOLOGICAL STUDY OF CARCINOMA OESOPHAGUS

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    Shafi

    2016-05-01

    Full Text Available Oesophageal malignancies are not an uncommon disease entity in this part of India. It is observed in both the sexes. Patients present with progressive dysphagia for solids. The duration of symptoms varies from 6 months to 2 years. Among the various aetiological factors, smoking, alcohol intake, spicy hot food intake, industrial pollution and achalasia cardia are a few worth mentioning. AIM OF THE STUDY To evaluate the differences in the predisposing factors causing squamous cell carcinoma and adenocarcinoma of oesophagus in this part of India. MATERIALS AND METHODS The study is conducted in the Department of Surgery at Government Medical College Hospital, Kozhikode; Kerala. One hundred patients attending the Department with history of Dysphagia were included after thorough history taking, clinical and endoscopic examination and found to have malignant growths in the oesophagus which was confirmed by biopsy and histopathological examination. Various aetiological factors were elicited and analysed in both the histological varieties of malignancy of oesophagus. OBSERVATIONS AND RESULTS Significant number of patients with history of paan chewing presented with histological picture of squamous cell carcinoma as compared to patients who had adenocarcinoma. Gastroesophageal reflux disease was more commonly associated with adenocarcinoma. Out of 37 patients with adenocarcinoma, 31 patients had history of gastroesophageal reflux disease (83.8%. 6 patients had no history of gastroesophageal reflux disease (16.2% within histology. Consumption of hot drinks, tea and coffee more than 10 per day has been analysed. 52 were consuming, 48 were not consuming, P value 0.179 non-significant. CONCLUSIONS Squamous cell carcinoma is more prevalent as compared to adenocarcinoma in present study. The main factor that has emerged is lifestyle, dietary habit, smoking and alcohol, and environmental factor. Consumption of alcohol and smoking is known risk factors in

  14. Hep par-1: a novel immunohistochemical marker for differentiating hepatocellular carcinoma from metastatic carcinoma

    International Nuclear Information System (INIS)

    Hanif, R.

    2014-01-01

    To evaluate the diagnostic utility of Hep par-1 in differentiating hepatocellular carcinoma from metastatic carcinoma taking histopathology as a gold standard. Study Design: Comparative cross-sectional study. Place and Duration of Study: Pathology Department, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, from April 2007 to February 2008. Methodology: Hep par-1 immunohistochemical stain was performed on 60 cases of liver carcinoma, 30 cases each of metastatic and hepatocellular carcinoma. Information regarding patient age, gender, sign and symptoms, radiographic findings, histological grade of tumour, and expression of Hep par-1 on hepatocellular and metastatic carcinoma were recorded on proforma sheet. Sensitivity, specificity, positive and negative predictive values, and accuracy of Hep par-1 were calculated using the formulas. Results: Hep par-1 expression was noted in 25 out of 30 cases of hepatocellular carcinoma (83%). Out of 30 cases of metastatic carcinoma, only one case expressed staining in < 5% tumour cells and remaining 29 cases showed no reactivity. The age of the patients with hepatocellular carcinoma ranged from 40 to 76 years with a median age of 60.5 years and 40 - 75 years for metastatic carcinomas with a median age of 57.5 years. Conclusion: Hep par-1 is a reliable immunohistochemical marker for cases of hepatocellular carcinoma (HCC). It can be used along with other markers in morphologically difficult cases when differential diagnosis lies between poorly differentiated HCC and metastatic carcinoma of liver. (author)

  15. Expression of heparanase in basal cell carcinoma and squamous cell carcinoma.

    Science.gov (United States)

    Pinhal, Maria Aparecida Silva; Almeida, Maria Carolina Leal; Costa, Alessandra Scorse; Theodoro, Thérèse Rachell; Serrano, Rodrigo Lorenzetti; Machado, Carlos D'Apparecida Santos

    2016-01-01

    Heparanase is an enzyme that cleaves heparan sulfate chains. Oligosaccharides generated by heparanase induce tumor progression. Basal cell carcinoma and squamous cell carcinoma comprise types of nonmelanoma skin cancer. Evaluate the glycosaminoglycans profile and expression of heparanase in two human cell lines established in culture, immortalized skin keratinocyte (HaCaT) and squamous cell carcinoma (A431) and also investigate the expression of heparanase in basal cell carcinoma, squamous cell carcinoma and eyelid skin of individuals not affected by the disease (control). Glycosaminoglycans were quantified by electrophoresis and indirect ELISA method. The heparanase expression was analyzed by quantitative RT-PCR (qRTPCR). The A431 strain showed significant increase in the sulfated glycosaminoglycans, increased heparanase expression and decreased hyaluronic acid, comparing to the HaCaT lineage. The mRNA expression of heparanase was significantly higher in Basal cell carcinoma and squamous cell carcinoma compared with control skin samples. It was also observed increased heparanase expression in squamous cell carcinoma compared to the Basal cell carcinoma. The glycosaminoglycans profile, as well as heparanase expression are different between HaCaT and A431 cell lines. The increased expression of heparanase in Basal cell carcinoma and squamous cell carcinoma suggests that this enzyme could be a marker for the diagnosis of such types of non-melanoma cancers, and may be useful as a target molecule for future alternative treatment.

  16. Invasive lobular carcinoma with extracellular mucin as a distinct variant of lobular carcinoma: a case report

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    Haltas Hacer

    2012-08-01

    Full Text Available Abstract The differences between invasive lobular and ductal carcinomas affect the diagnostic and therapeutic management for patients with breast cancer. In most cases, this can be accomplished because of distinct histomorphologic features. However, occasionally, this task may become quite difficult, in particular when dealing with the variants of infiltrating lobular carcinoma. Lobular carcinoma has been considered a variant of mucin-secreting carcinoma with only intracytoplasmic mucin. The presence of extracellular mucin is a feature of ductal carcinoma. Herein is presented a case of lobular carcinoma with extracellular and intracellular mucin in a 43-year-old female patient, and confirmed by immunohistochemistry. Up to the present, infiltrating lobular carcinoma displaying extracellular mucin has not been described in the literature except two case. Virtual slides The virtual slide(s for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1839906067716744

  17. Suprimento do silicato de cálcio e a eficiência nutricional de variedades de cafeeiro Effect of calcium silicate suplly and the nutritional efficiency of coffee cultivars

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    Adélia Aziz Alexandre Pozza

    2009-12-01

    Full Text Available Embora não seja considerado nutriente essencial às plantas, o Si é classificado como elemento benéfico ou útil, mas pode alterar a dinâmica nutricional das plantas. Objetivando comparar a eficiência nutricional de variedades de cafeeiro (Catuaí, Mundo Novo e Icatu em resposta à adubação silicatada, realizou-se um experimento em blocos casualizados, com as três variedades de mudas em tubetes combinadas com seis doses de CaSiO3 (T0 = 0, T1 = 0,063, T2 = 0,125, T3 = 0,25, T4 = 0,5 e T5 = 1,0 g dm-3 de substrato. A variedade Icatu teve a maior eficiência de absorção (EA de Cu, Zn, Fe e Si, maior eficiência de uso (EU de N, K, Ca, B e Mn, não diferindo da Mundo Novo com relação aos nutrientes N, Ca e Mn, e maior eficiência de translocação (ET de N, S, Zn e de Fe. A Catuaí teve maior EA de P, K, B e Mn, não diferindo da Mundo Novo com relação aos nutrientes P, K e Mn, maior EU para Mg, S, Cu, Zn, Fe e Si, provavelmente devido à melhor ET desses nutrientes, exceto para Fe e Si. A Mundo Novo foi mais eficiente na absorção de N, K, Ca, Mg, Mn e Si, teve maior EU de P e Mn e maior ET de K, Ca, B, Mn e Si.Silicon is classified as a beneficial nutrient and can improve the nutritional dynamics of plants, although it is not considered an essential nutrient for plants. In an experiment in a randomized block design, three coffee cultivars (Catuaí, Mundo Novo and Icatu were planted in plastic tubes, combined with six doses of calcium silicate (T0=0, T1=0.063, T2=0.125, T3=0.25, T4=0.5 and T5=1.0 g dm-3 substrate, to compare the nutritional efficiency of the cultivars in response to silicon fertilization. Cultivar Icatu showed the higher uptake efficiency (UE of Cu, Zn, Fe, and Si, and efficiency of use (EU of N, K, Ca, B, and Mn, but the later did not differ from Mundo Novo cultivar (N, Ca, and Mn. The efficiency of translocation (ET was higher for N, S, Zn, and Fe. For Catuaí the uptake efficiency of P, K, B, and Mn was higher

  18. Clinical analysis of cases with nasopharyngeal carcinoma

    International Nuclear Information System (INIS)

    Sato, Katsuro; Tomita, Masahiko; Takahashi, Sugata; Matsuyama, Hiroshi

    2010-01-01

    Forty-one cases with nasopharyngeal carcinoma (NPC) treated in our department between 1991 and 2007 were clinically analyzed. The mean age of the cases was 53 years old, and the male-to female ratio was 3.6:1. The most common chief complaint was ear symptoms followed by neck, eye, and nose symptoms. The most common histology was squamous cell carcinoma, followed by undifferentiated carcinoma, adenocarcinoma, and spindle cell carcinoma. More than half of the cases were classified as clinical stage IV. For squamous cell carcinoma, undifferentiated carcinoma, spindle cell carcinoma cases, concurrent chemoradiotherapy followed by adjuvant chemotherapy was applied. For adenocarcinoma cases, transpalatal resection and postoperative radiotherapy was applied. The five-year overall survival rate was 64.1% and the disease-specific five-year survival rate was 71.2%. No significant statistical differences were seen between early stage (I, II) and late stage (III, IV), between I, II, III stage and IV stage. Recurrence occurred in 24.4% of the cases, and distant metastasis was more dominant than local recurrence. For the diagnosis and treatment of NPC, proper detection of NPC from variegated symptoms, and chemoradiotherapy for squamous cell carcinoma cases were considered to be important. (author)

  19. A clinical study of nasopharyngeal carcinoma

    International Nuclear Information System (INIS)

    Ito, Zenya; Wada, Tetsuro; Senarita, Masamitsu

    1999-01-01

    Forty-four patients of nasopharyngeal carcinoma, treated in Tsukuba University Hospital between March 1988 and March 1998, were reviewed in order to assess the adequacy of our treatment protocol. Most of the cases except 5 were histologically diagnosed as squamous cell carcinoma including 25 of lymphoepithelioma (poorly-differentiated squamous cell carcinoma). Thirty-two out of 39 squamous cell carcinoma cases have fallen into Stage IV category (UICC, 1987) , and all of the non-squamous cell carcinoma cases were also categorized as Stage IV. The basic protocol for nasopharyngeal squamous cell carcinoma was the combination of full-dose irradiation and chemotherapy using cisplatin/carboplatin and peplomycin. The metastatic cervical lymphnodes in 9 cases, too massive to control by this treatment, were surgically dissected after the treatment. Recurrence was noted in 9 cases who were rehospitalized and salvaged medically and/or surgically. As a consequence, the overall 5-year survival rate was 71.4% for squamous cell carcinoma. On the other hand, only one of the 5 non-squamous cell carcinoma cases died of the disease. (author)

  20. NEOADJUVANT RADIOTHERAPY FOR BLADDER CARCINOMA IN ...

    African Journals Online (AJOL)

    Objective To evaluate the impact of preoperative accelerated hyperfractionated radiotherapy in the management of bladder carcinoma in Egyptian patients. Patients and Methods Between December 1996 and February 2000, 104 Egyptian patients with pathologically proven infiltrative bladder carcinoma were enrolled in ...

  1. Human papillomavirus DNA in aerodigestive squamous carcinomas ...

    African Journals Online (AJOL)

    A series of 10 oesophageal and 10 laryngeal squamous carcinomas was examined by means of immuno cytochemistry and in situ DNA hybridisation to demonstrate human papillomavirus (HPV) infection. Changes in the epithelium adjacent to the carcinoma were found in 5 of 10 oesophageal and 7 of 10 laryngeal ...

  2. Neglected basal cell carcinoma on scalp

    Directory of Open Access Journals (Sweden)

    Sudip Sarkar

    2016-01-01

    Full Text Available Giant basal cell carcinoma (BCC is a very rare entity. Usually, they occur due to the negligence of the patient. Local or distant metastasis is present in most cases. Here, we present a case of giant BCC that clinically resembled squamous cell carcinoma and demonstrated no metastasis at presentation.

  3. Breed predisposition to canine gastric carcinoma

    DEFF Research Database (Denmark)

    Seim-Wikse, Tonje; Jörundsson, Einar; Nødtvedt, Ane

    2013-01-01

    Previous research has indicated a breed predisposition to gastric carcinoma in dogs. However, results to date are inconsistent since several studies have failed to prove such a predisposition. Better knowledge of breeds at risk could facilitate early detection of gastric carcinoma in dogs. The ai...

  4. Combination therapies in oral squamous cell carcinomas

    International Nuclear Information System (INIS)

    Krishnamurthi, S.; Shanta, V.

    1982-01-01

    The clinical trials are reported involving combined radiotherapy and chemotherapy in oral squamous cell carcinomas. Bleomycin was the only drug that potentiated radiation response in buccal squamous cell carcinomas. The response of the primary tumors was consistent, predictable and reproducible. The following drugs or chemicals were used: synkavit, methotrexate, metronidazole, bleomycin, pepleomycin, and hyperbaric oxygen. The results and their comparison is given in tables

  5. Ductal carcinoma of the parotid gland.

    Science.gov (United States)

    Eriksen, H E; Greisen, O; Hastrup, N

    1987-06-01

    A case of ductal carcinoma of the parotid gland is described. The medical literature contains only 13 previous reports on this kind of adenocarcinoma of the parotid gland. The tumour is characterized by its histologic resemblance to ductal carcinomas of the breast and prostate. The course of previously described cases suggests that this tumour has a highly aggressive biological behaviour.

  6. Radiation therapy for carcinoma of the eyelid

    International Nuclear Information System (INIS)

    Tsuchiya, Miwako; Takahashi, Mitsuhiro; Shinozaki, Jun; Kaneda, Koichi; Oda, Norio; Tabuchi, Yoshiko

    1987-01-01

    Between 1969 and 1985, 30 patients with carcinomas of the eyelid were treated by radiation, including 19 primary cases and 11 secondary cases. The latter were less controlable than the former. According to histology, there were 21 squamous cell carcinomas, 6 basal cell carcinomas and 3 adenocarcinomas. Among the 21 patients with squamous cell carcinomas, 5 had local recurrences, 10 had lymph node metastasis and 3 had distant metastasis. Patients with other histological classifications had no local recurrences, except for one who received incomplete therapy due to diabetes. Almost all of the controlled patients with squamous cell carcinomas were treated with a TDF value greater than 90. Although the visual function was damaged by irradiation in seven patients, the lesions of 6 of them were too advanced to avoid radiation injuries. (author)

  7. Unusual manifestations of secondary urothelial carcinoma

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    Chaohui Lisa Zhao

    2016-03-01

    Full Text Available High-grade papillary urothelial carcinoma regularly invades the bladder wall, adjacent prostate, seminal vesicles, ureters, vagina, rectum, retroperitoneum, and regional lymph nodes. In advanced stages, it may disseminate to the liver, lungs, and bone marrow. On rare occasions, unusual metastatic foci like skin have been reported. The incidence of urothelial carcinoma has increased with associated rise in variants of urothelial carcinoma and unusual metastatic foci. It is imperative that urologists and pathologists are aware of the unusual variants and unusual metastatic locations to expedite the diagnostic process. Hereby we report an unusual case of secondary involvement of spinal nerve by conventional urothelial carcinoma. Also a second case of rhabdoid variant of urothelial carcinoma showing synchronous involvement of bladder and subcutaneous tissue of upper extremity is presented.

  8. Scalp squamous cell carcinoma in xeroderma pigmentosum.

    Science.gov (United States)

    Awan, Basim A; Alzanbagi, Hanadi; Samargandi, Osama A; Ammar, Hossam

    2014-02-01

    Xeroderma pigmentosum is a rare autosomal-recessive disorder that appears in early childhood. Squamous cell carcinoma is not uncommon in patients with xeroderma pigmentosum and mostly involving the face, head, neck, and scalp. However, squamous cell carcinoma of the scalp may exhibit an aggressive course. Here, we present a huge squamous cell carcinoma of the scalp in a three-years-old child with xeroderma pigmentosum. In addition, we illustrate the challenges of a child with xeroderma pigmentosum who grows up in a sunny environment where the possibility of early onset of squamous cell carcinoma is extremely high in any suspected skin lesion. In xeroderma pigmentosum patients, squamous cell carcinoma of the scalp can present early and tends to be unusually aggressive. In sunny areas, proper education to the patient and their parents about ultra-violet light protection and early recognition of any suspicious lesion could be life-saving.

  9. VEGF immunoexpression in penile carcinoma

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Pereira Martins

    2002-01-01

    Full Text Available OBJECTIVE: To investigate the vessel endothelial growth factor (VEGF as a risk factor in squamous cell carcinoma of the penis (SCCP. METHODS: Forty-seven patients with penile carcinoma were evaluated retrospectively. The mean age and standard deviation were 61.1±11.7 years. All of them were treated by penectomy and those with positive nodes underwent groin lymphadenectomy. Tumor grading was 35 G1 and 12 G2/3. Primary lesion stage was 24 pT1 and 23 pT2-4. Positive inguinal nodes were observed in 15 patients. Selected paraffin embedded sections were submitted to VEGF immunohistochemical analysis by the avidin-biotin-immunoperoxidase method with antigen retrieval. All slides were examined using an automatic analyzer system and the proportion of labeled cells in 10 high magnification power fields (400X were recorded in a blind analysis. RESULTS: Median (% labeling index was 2.3 in G1 versus 2.2 in G2/3 tumors (p=0.60, and 4.0 in pT1 versus 1.8 pT2-4 tumors (p=0.10. The respective data for pN0 patients was 2.8 and for pN+ was 2.1 (p=0.20. Survival curves showed no association with patients survival. CONCLUSION: In squamous cell carcinoma of the penis the VEGF immunoexpression has no association with tumor grade or stage, as well as with patient survival.

  10. INCLUSIÓN Y ACUMULACIÓN DE NA+ EN DIFERENTES ÓRGANOS DE LA VARIEDAD DE TRIGO CUBA-C-204 COMO RESPUESTA AL ESTRÉS SALINO

    Directory of Open Access Journals (Sweden)

    Leandris Argentel

    2016-06-01

    Full Text Available Se determinó la capacidad de inclusión y los sitios de retención de cationes en una variedad de trigo harinero Cuba-C-204, como posible indicador de toxicidad iónica y daño celular después de tratamiento salino, mediante técnicas de espectrofotometría de absorción atómica, fijación y microanálisis en diferentes órganos de la planta. Plantas fueron cultivadas por 35 días en condiciones de hidroponía en solución nutritiva con dos tratamientos (salinizada y control, con 88 mM de NaCl y sin NaCl, respectivamente. Se cuantificó el contenido catiónico en raíces, vainas y hojas, y en una muestra aleatoria de cada órgano seccionado. Como resultado del tratamiento salino observase que hubo mayor acumulación de Na+ y Ca2+ en los diferentes órganos. En la parte de la raíz más próxima al tallo, y en la base y parte media de la vaina se observó inclusión y concentración significativas de Na+. En la hoja el Na+ se acumuló en la parte más próxima a la lígula y el ápice, estando ausente en la parte media de la hoja. La mayor interferencia nutricional obtenida fue Na+/K+ en las vainas de las hojas, con una relación iónica media de 0.45. El contenido de Ca2+ en todos los casos fue superior en las plantas que crecieron en el medio salino y su concentración aumentó desde la raíz hasta las hojas. Existió congruencia entre los análisis espectrofotométricos y lo observado por microscopía electrónica. Los resultados obtenidos permiten aumentar el conocimiento que se tiene de la variedad como fuente de resistencia al estrés salino.

  11. Avaliação de variedades de morangueiro em sistemas hidropônicos sob casa de vegetação Evaluation of strawberry varieties in hydroponics systems in greenhouses

    Directory of Open Access Journals (Sweden)

    Edilson Costa

    2008-06-01

    Full Text Available Realizaram-se experimentos na Faculdade de Engenharia Agrícola na Universidade Estadual de Campinas, com quatro variedades de morangueiro (Campinas, Seascape, Sweet Charlie e Tudla, em quatro sistemas de produção hidropônica (canal de 100mm, canal de 150mm, canal de 150mm com vaso contendo fibra de coco e tubo vertical contendo casca de arroz carbonizada, em três ambientes protegidos com níveis tecnológicos diferenciados (casa de vegetação sem resfriamento evaporativo do ar e sem injeção aérea de CO2, casa de vegetação com injeção aérea de CO2 e sem resfriamento evaporativo do ar, e casa de vegetação com injeção aérea de CO2 e resfriamento evaporativo do ar. Foram analisadas as produtividades em gramas por planta (P e o número de frutos por planta (NF. Destacou-se como melhor variedade a Campinas. O melhor sistema de cultivo foi o de canais de 150mm com vaso contendo fibra de coco.Experiments were accomplished in the experimental field of the Faculty of Agricultural Engineering at State University of Campinas (Unicamp. Four varieties of strawberry were tested (Campinas, Seascape, Sweet Charlie and Tudla in four hydroponics production systems (100mm and 150mm channels and 150mm channel with a vase containing coconut fiber and a vertical pipe containing carbonized rice skin in three greenhouses with different technical: i greenhouse without air evaporative cooling nor CO2 aerial injection, ii greenhouse with CO2 aerial injection and without air evaporative cooling and iii greenhouse with CO2 aerial injection and air evaporative cooling. The productivity in grams per plant (P and the number of fruits per plant (NF were analyzed. The variety Campinas was better than the others. The best hydroponics system was the 150mm channel with a vase containing coconut fiber.

  12. Composición química de distintas calidades de aceites de oliva virgen de la variedad “Empeltre” en el bajo Aragón

    Directory of Open Access Journals (Sweden)

    Gracia Gómez, Mª Soledad

    2001-02-01

    Full Text Available The variability of the parameters of chemical composition of virgin olive oil, “Empeltre” variety, in 472 samples coming from the Bajo Aragón region, in three seasons 1996/97, 1997/98 y 1998/99 was studied in this work. The free acidity, peroxide values, ultraviolet absorbances, fatty acid composition, sterolic composition and the level of waxes and polyphenols were analized. Considering their chemical composition, the majority of the analysed oils are of great quality. The oils of the 1997/98 season differ more from those of other seasons, having been affected by the attack of the Dacus oleae, which gave a higger acidity level, raising the peroxides and the waxes as well. The sterolic composition was also affected. The “Empeltre” variety from the Bajo Aragón region shows high values of Delta7 stigmastenol, which in many cases exceed the maximum value of the European Union Commission Regulation.Se ha estudiado la variabilidad de los parámetros de composición química de aceites de oliva virgen de la variedad “Empeltre” , en 472 muestras procedentes de la zona del Bajo Aragón, durante tres campañas (1996/97, 1997/98 y 1998/99. Se ha determinado el grado de acidez, índice de peróxidos, lecturas en el ultravioleta, composición de ácidos grasos, composición esterólica, contenido en ceras y polifenoles. Considerando su composición química, la mayor parte de los aceites analizados son de gran calidad. Los aceites de la campaña 1997/98 son diferentes a los de las otras campañas, habiendo sido muy afectados por el ataque de mosca (Dacus oleae, que produjo un mayor grado de acidez, elevando también el índice de peróxidos y las ceras. La composición esterólica también se vio afectada. El aceite de la variedad “Empeltre” de la zona del Bajo Aragón presenta valores altos de Delta7 estigmastenol, que en muchos casos supera el valor tolerado en el Reglamento Comunitario.

  13. Invasive ductal carcinoma vs. invasive lobular carcinoma; mammographic findings

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Eun Chun; Do, Young Soo; Oh, Hoon Il; Han, Yoon Hee; Kim, Ki Soo; Chin, Soo Yil [Korea Cancer Center Hospital, Seoul (Korea, Republic of)

    1996-01-01

    The purpose of this study is to evaluate mammographic findings of invasive ductal carcinoma (IDC) and invasive lobular carcinoma(ILC) and to find differential points between the two. 239 patients, who underwent mammography prior to surgery and were proved to have IDC(patients) or ILC(15 patients) pathologically, were analized retrospectively. On mammogram, presence of mass and microcalcification were analized. When there was a mass on mammogram, lesion opacity was classified into high, equal, or low opacity and border of the mass was classified into spiculated, poorly marginated, and well-marginated. When there was no definite mass, mammographic findings were classifie into asymmetric opacity and no mass. Masses were observed in 168 patients(75%) of IDC and 12 patients(80%) of ILC. Border of the masses were spiculated(n=50, 22.3%), poorly marginated(n=112, 50%), or well-marginated(n=6, 2.7%) in patients with IDC. Spiculated and poorly marginated borders were observed in 8 patients(53.3%) and 4 patients(26.7%) respectively, in patients with ILC. Microcalcifications were seen in 88 patients(17.3%) of IDC and patients(33.3%) of ILC. Although equal or low opacities were observed more frequently in ILC and microcalcifications were noted more frequently in IDC, it was difficult to differentiate the two diseases based on mammographic findings.

  14. Invasive ductal carcinoma vs. invasive lobular carcinoma; mammographic findings

    International Nuclear Information System (INIS)

    Lee, Eun Chun; Do, Young Soo; Oh, Hoon Il; Han, Yoon Hee; Kim, Ki Soo; Chin, Soo Yil

    1996-01-01

    The purpose of this study is to evaluate mammographic findings of invasive ductal carcinoma (IDC) and invasive lobular carcinoma(ILC) and to find differential points between the two. 239 patients, who underwent mammography prior to surgery and were proved to have IDC(patients) or ILC(15 patients) pathologically, were analized retrospectively. On mammogram, presence of mass and microcalcification were analized. When there was a mass on mammogram, lesion opacity was classified into high, equal, or low opacity and border of the mass was classified into spiculated, poorly marginated, and well-marginated. When there was no definite mass, mammographic findings were classifie into asymmetric opacity and no mass. Masses were observed in 168 patients(75%) of IDC and 12 patients(80%) of ILC. Border of the masses were spiculated(n=50, 22.3%), poorly marginated(n=112, 50%), or well-marginated(n=6, 2.7%) in patients with IDC. Spiculated and poorly marginated borders were observed in 8 patients(53.3%) and 4 patients(26.7%) respectively, in patients with ILC. Microcalcifications were seen in 88 patients(17.3%) of IDC and patients(33.3%) of ILC. Although equal or low opacities were observed more frequently in ILC and microcalcifications were noted more frequently in IDC, it was difficult to differentiate the two diseases based on mammographic findings

  15. Combined Primary Neuroendocrine Carcinoma and Hepatocellular Carcinoma of the Liver

    Directory of Open Access Journals (Sweden)

    Chii-Shuenn Yang

    2009-08-01

    Full Text Available We report a unique case of combined primary neuroendocrine carcinoma (NEC and hepatocellular carcinoma (HCC of the liver in a 65-year-old male patient. The patient underwent segmental resection of the liver and regional lymph node dissection for a tumor mass that measured 7.5 cm in diameter in the right lobe, with regional lymphadenopathy. Histologically, the hepatic tumor was composed of predominantly small-cell NEC, but admixed with a small island of moderately differentiated HCC. We speculate that the NEC originated from a poorly differentiated tumor clone of an HCC that underwent neuroendocrine differentiation, and that this tumor was now at the end stage of the transitional period from HCC to NEC, based on the small amount of disappearing HCC. Ki-67 and p53 expression were higher in the NEC than in the HCC, and the lymph nodes showed only metastatic NEC. Therefore, this kind of tumor had a more aggressive clinical course in accordance with being an NEC rather than a conventional HCC. Three months after operation, the patient had multiple recurrent tumor nodules within the liver, spreading the metastasis to the adrenal glands and para-aortic lymph nodes. The patient died 1 year after operation.

  16. Current management of hepatocellular carcinoma

    Science.gov (United States)

    Tabrizian, Parissa; Roayaie, Sasan; Schwartz, Myron E

    2014-01-01

    Hepatocellular carcinoma (HCC) is the sixth most common cancer worldwide and leading cause of death among patients with cirrhosis. Treatment guidelines are based according to the Barcelona Clinic Liver Cancer staging system. The choice among therapeutic options that include liver resection, liver transplantation, locoregional, and systemic treatments must be individualized for each patient. The aim of this paper is to review the outcomes that can be achieved in the treatment of HCC with the heterogeneous therapeutic options currently available in clinical practice. PMID:25132740

  17. Nevoid basal cell carcinoma syndrome

    Directory of Open Access Journals (Sweden)

    Kannan Karthiga

    2006-01-01

    Full Text Available Binkley and Johnson first reported this syndrome in 1951. But it was in 1960, Gorlin-Goltz established the association of basal cell epithelioma, jaw cyst and bifid ribs, a combination which is now frequently known as Gorlin-Goltz syndrome as well as Nevoid Basal Cell Carcinoma Syndrome (NBCCS. NBCCS is inherited as an autosomal dominant trait with high penetrance and variable expressivity. NBCCS is characterized by variety of cutaneous, dental, osseous, opthalmic, neurologic and sexual abnormalities. One such case of Gorlin-Goltz syndrome is reported here with good illustrations.

  18. Transhemangioma Ablation of Hepatocellular Carcinoma

    International Nuclear Information System (INIS)

    Pua, Uei

    2012-01-01

    Radiofrequency ablation (RFA) is a well-established treatment modality in the treatment of early hepatocellular carcinoma (HCC) [1]. Safe trajectory of the RFA probe is crucial in decreasing collateral tissue damage and unwarranted probe transgression. As a percutaneous technique, however, the trajectory of the needle is sometimes constrained by the available imaging plane. The presence of a hemangioma beside an HCC is uncommon but poses the question of safety related to probe transgression. We hereby describe a case of transhemangioma ablation of a dome HCC.

  19. Radiation therapy for esophageal carcinoma

    International Nuclear Information System (INIS)

    Chatani, Masashi; Matayoshi, Yoshinobu; Masaki, Norie

    1992-01-01

    From 1977 through 1989, 149 patients with esophageal carcinoma were treated with external irradiation (EI) with or without high-dose rate intraluminal irradiation (HDRII) using remote afterloading system. Concerning complete response group EI alone showed higher local control rate than EI + HDRII, especially in ulcerative type. Another problem is the EI field. Fourteen of 22 patients who were salvaged by surgery due to local recurrence after EI showed marginal or out-field metastasis of the lymph node. These preliminary results suggest that HDRII is not effective for the local control of the ulcerative lesion as a boost therapy, EI should be given for the entire regional lymph nodes. (author)

  20. Prostatic carcinoma in two cats

    International Nuclear Information System (INIS)

    Caney, S.M.A.; Holt, P.E.; Day, M.J.; Rudorf, H.; Gruffydd-Jones, T.J.

    1998-01-01

    Clinical, radiological and pathological features of two cats with prostatic carcinoma are reported. In both cats the presenting history included signs of lower urinary tract disease with haematuria and dysuria. Prostatomegaly was visible radiographically in one cat; an irregular intraprostatic urethra was seen on retrograde contrast urethrography in both cats. In one of the cats, neoplasia was suspected on the basis of a transurethral catheter biopsy. Following a poor response to palliative treatment in both cases, euthanasia was performed with histological confirmation of the diagnosis

  1. Irradiation of metastatic carcinoma parotid

    International Nuclear Information System (INIS)

    Jack, G.A.

    1981-01-01

    Acinic cell carcinomas of the parotid should be considered distinct malignancies despite descriptions of low-grade malignant potential and innocuous histologic patterns. Benign-appearing tumors frequently have a clinically malignant course. Blood-borne metastases may oocur early despite gross and microscopic innocence. Indolent growth may be a characteristic of local disease, which may then be approached with less than radical parotidectomy and sacrifice of the facial nerve. These tumors prove to be radiosensitive. More agressive postoperative irradiation and palliative irradiation is recommended. Two cases of successful palliation of spinal metastases are presented as examples of radiosensitivity of this tumor

  2. Update on Merkel Cell Carcinoma.

    Science.gov (United States)

    Harms, Paul W

    2017-09-01

    Merkel cell carcinoma (MCC) is a rare, aggressive cutaneous neuroendocrine malignancy. Merkel cell polyomavirus, a tumorigenic DNA virus, is present in most MCC tumors, with implications for tumor biology, diagnosis, and management. Merkel cell polyomavirus-negative tumors have a high burden of UV-signature mutations, similar to melanoma. The histopathologic diagnosis of MCC requires immunohistochemistry to exclude morphologically similar entities. Therapies for advanced disease are currently lacking. Here, the features of MCC are reviewed, including recent molecular discoveries with implications for improved therapy for advanced disease. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. Nasopharyngeal carcinoma with pericardial metastasis

    Directory of Open Access Journals (Sweden)

    Shang-Wen Chen

    2011-07-01

    Full Text Available Nasopharyngeal carcinoma (NPC is prevalent in Taiwan and is characterized by a high frequency of nodal metastasis. The most common organs with distal metastases are the bones, lungs, and liver, with extremely rare cases to the pericardium. Herein, we report a rare case with NPC who presented with dyspnea and orthopnea. Serial studies, including pericardial biopsy, revealed NPC with pericardial metastasis and pericardial effusion. The tumor cells of both the original and metastatic tumors were positive for Epstein–Barr virus by in situ hybridization. This is the first histologically confirmed case of NPC with pericardial metastasis.

  4. Radiation myelopathy in nasopharyngeal carcinoma

    International Nuclear Information System (INIS)

    Enomoto, Hiroyuki; Tsukuda, Mamoru; Kono, Hidehiro; Omata, Toshiyuki; Mochimachi, Izumi; Hasegawa, Osamu

    1995-01-01

    A 36-year-old woman with nasopharyngeal carcinoma developed radiation myelopathy. She was treated with radiotherapy, a total dose of about 120 Gy to the cervical spinal cord at the C1 level, chemotherapy and immunotherapy. Nine months after the final radiation therapy, she complained of a paresthesia in the distal area of the right leg. Neurological examination revealed incomplete left Brown-Sequard syndrome below the level of C5. Neurological symptoms had been progressive. The spinal MRI showed an abnormal intramedullary high intensity area enhanced by Gd-DTPA. (author)

  5. Radiation myelopathy in nasopharyngeal carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Enomoto, Hiroyuki; Tsukuda, Mamoru; Kono, Hidehiro; Omata, Toshiyuki; Mochimachi, Izumi; Hasegawa, Osamu [Yokohama City Univ. (Japan). School of Medicine

    1995-08-01

    A 36-year-old woman with nasopharyngeal carcinoma developed radiation myelopathy. She was treated with radiotherapy, a total dose of about 120 Gy to the cervical spinal cord at the C1 level, chemotherapy and immunotherapy. Nine months after the final radiation therapy, she complained of a paresthesia in the distal area of the right leg. Neurological examination revealed incomplete left Brown-Sequard syndrome below the level of C5. Neurological symptoms had been progressive. The spinal MRI showed an abnormal intramedullary high intensity area enhanced by Gd-DTPA. (author).

  6. Transhemangioma Ablation of Hepatocellular Carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Pua, Uei, E-mail: druei@yahoo.com [Tan Tock Seng Hospital, Department of Diagnostic Radiology (Singapore)

    2012-12-15

    Radiofrequency ablation (RFA) is a well-established treatment modality in the treatment of early hepatocellular carcinoma (HCC) [1]. Safe trajectory of the RFA probe is crucial in decreasing collateral tissue damage and unwarranted probe transgression. As a percutaneous technique, however, the trajectory of the needle is sometimes constrained by the available imaging plane. The presence of a hemangioma beside an HCC is uncommon but poses the question of safety related to probe transgression. We hereby describe a case of transhemangioma ablation of a dome HCC.

  7. Aflatoxinas: conceitos sobre mecanismos de toxicidade e seu envolvimento na etiologia do câncer hepático celular Aflatoxins in foodstuffs: current concepts on mechanisms of toxicity and its involvement in the etiology of hepatocellular carcinoma

    Directory of Open Access Journals (Sweden)

    Carlos Augusto Fernandes de Oliveira

    1997-08-01

    Full Text Available Foram revistos os conceitos de maior relevância sobre mecanismos de toxicidade e evidências do envolvimento das aflatoxinas na etiologia do câncer hepático humano. A aflatoxina B1 (AFB1, principal metabólito produzido por fungos do gênero Aspergillus, manifesta seus efeitos tóxicos após conversão hepática em AFB1-epóxido, o qual reage com macromoléculas celulares, incluindo proteínas, RNA (ácido ribonucléico e DNA (ácido desoxirribonucléico. A reação com o DNA ocorre através da ligação com guaninas, ao nível do códon 249, do gene supressor de tumores p53. Em seres humanos, estudos de biomonitoramento individual de derivados AFB1-N7-guanina tem demonstrado que as aflatoxinas constituem importantes fatores de risco, com uma provável interação sinergística com o vírus da hepatite B, para o desenvolvimento do carcinoma hepatocelular em populações expostas. Considerando-se a ocorrência freqüente das aflatoxinas em produtos alimentícios, no Brasil, ressalta-se a necessidade de estudos que avaliem criteriosamente o impacto dos níveis de exposição a estas toxinas sobre a saúde humana.Current concepts derived from intensive research over the last decade, on biotransformation, mechanisms of toxicity and evidences for the involvement of aflatoxins in the etiolgy of human liver cancer are summarily presented. Aflatoxin B1(AFB1, the main metabolite produced by moulds of genus Aspergillus, exerts its effects after conversion to the reactive compound AFB1-epoxide, by the action of cytochrome P450-dependent enzymes. This epoxide can form derivatives with cellular macromolecules, including proteins, RNA and DNA. The reaction with DNA occurs with guanines in the códon 249 of tumor suppressor gene p53. Primary biotransformation of AFB1 also produces hydroxylated and less toxic derivatives, such as aflatoxins Q1 and P1. Differences intra and interspecies in the pathways of activation/detoxification are directly related to the

  8. Cetuximab & Nivolumab in Patients With Recurrent/Metastatic Head & Neck Squamous Cell Carcinoma

    Science.gov (United States)

    2018-04-10

    Squamous Cell Carcinoma of the Oropharynx; Squamous Cell Carcinoma of the Larynx; Squamous Cell Carcinoma of the Oral Cavity; Squamous Cell Carcinoma of the Hypopharynx; Squamous Cell Carcinoma of the Paranasal Sinus; Head and Neck Squamous Cell Carcinoma; Squamous Cell Cancer; Head and Neck Carcinoma

  9. Squamous cell carcinoma arising in an odontogenic cyst

    International Nuclear Information System (INIS)

    Yu, Jae Jung; Hwang, Eui Hwan; Lee, Sang Rae; Choi, Jeong Hee

    2003-01-01

    Squamous cell carcinoma arising in an odontogenic cyst is uncommon. The diagnosis of carcinoma arising in a cyst requires that there must be an area of microscopic transition from the benign epithelial cyst lining to the invasive squamous cell carcinoma. We report a histopathologically proven case of squamous cell carcinoma arising in a residual mandibular cyst in a 54-year-old woman.

  10. A possible connective tissue primary lymphoepithelioma-like carcinoma (LELC)

    OpenAIRE

    Aurilio, G; Ricci, V; De Vita, F; Fasano, M; Fazio, N; Orditura, M; Funicelli, L; De Luca, G; Iasevoli, D; Iovino, F; Ciardiello, F; Conzo, G; Nol?, F; Lamendola, MG

    2010-01-01

    Lymphoepithelial carcinoma is an undifferentiated nasopharyngeal carcinoma with lymphoid stroma and non-keratinizing squamous cells with distinctive clinical, epidemiological and etiological features. Conversely, lymphoepithelioma-like carcinomas (LELCs) are carcinomas that arise outside the nasopharynx but resemble a lymphoepithelioma histologically. In this case study, LELC presentation in connective tissue (left sternocleidomastoid muscle) is peculiar and unusual, but its diagnosis is supp...

  11. Reevaluation and reclassification of resected lung carcinomas originally diagnosed as squamous cell carcinoma using immunohistochemical analysis

    Science.gov (United States)

    Kadota, Kyuichi; Nitadori, Jun-ichi; Rekhtman, Natasha; Jones, David R.; Adusumilli, Prasad S.; Travis, William D.

    2015-01-01

    Currently, non-small cell lung carcinomas are primarily classified by light microscopy. However, recent studies have shown that poorly-differentiated tumors are more accurately classified by immunohistochemistry. In this study, we investigated the use of immunohistochemical analysis in reclassifying lung carcinomas that were originally diagnosed as squamous cell carcinoma. Tumor slides and blocks were available for histologic evaluation, and tissue microarrays were constructed from 480 patients with resected lung carcinomas originally diagnosed as squamous cell carcinoma between 1999 and 2009. Immunohistochemistry for p40, p63, thyroid transcription factor-1 (TTF-1; clone SPT24 and 8G7G3/1), Napsin A, Chromogranin A, Synaptophysin, and CD56 were performed. Staining intensity (weak, moderate, or strong) and distribution (focal or diffuse) were also recorded. Of all, 449 (93.5%) patients were confirmed as having squamous cell carcinomas; the cases were mostly diffusely positive for p40 and negative for TTF-1 (8G7G3/1). Twenty cases (4.2%) were reclassified as adenocarcinoma since they were positive for TTF-1 (8G7G3/1 or SPT24) with either no or focal p40 expression, and all of them were poorly-differentiated with squamoid morphology. In addition, 1 case was reclassified as adenosquamous carcinoma, 4 cases as large cell carcinoma, 4 cases as large cell neuroendocrine carcinoma, and 2 cases as small cell carcinoma. In poorly-differentiated non-small cell lung carcinomas, an accurate distinction between squamous cell carcinoma and adenocarcinoma cannot be reliably determined by morphology alone and requires immunohistochemical analysis, even in resected specimens. Our findings suggest that TTF-1 8G7G3/1 may be better suited as the primary antibody in differentiating adenocarcinoma from squamous cell carcinoma. PMID:25871623

  12. MR staging of endometrial carcinoma

    International Nuclear Information System (INIS)

    Innocenti, P.; Agostini, S.; Erroi, C.; Ambrogetti, D.; Cellerini, A.; Nori, J.

    1991-01-01

    Biopsy is the technique of choice for the definitive diagnosis of endometrial carcinoma. Since lymphatic tumor spread has been demonstrated to depend on the degree of myometrial involvement, the definition of the latter with imaging techniques may significantly affect both pfognosis and therapy. We investigated, by means of MR imaging at 0.5 T, 14 patients with endometrial carcinoma, to assess both tumor stage and myometrial involvement. FIGO staging system was employed, and M parameter evaluated (M0= no myometrial involvement; M1involvement confined to the inner third; M2= Involvement confined to the middle third; M3= involvement of the whole myometrium). Another parameter was the characteristic high signal of the tumor on PD and T2W images. The patients were then operated and MR information was correlated with surgical findings. Overall diagnostic accuracy of MR imaging was 85.7% in tumor staging, and 92.2% in defining M parameter. Tumor spread into adnexa and into cervical canal was poorly demonstrated by MR imaging

  13. Staging in local endometrial carcinoma

    International Nuclear Information System (INIS)

    Thorvinger, B.; Gudmundsson, T.; Horvath, G.; Forsberg, L.; Holtaas, S.; Lund Univ.

    1989-01-01

    Possible deep (more than an inner third of the uterine wall) myometrial invasion and cervical extension of endometrial carcinoma were evaluated prospectively using magnetic resonance (MR) and transabdominal real-time sonography (US) in 20 and 10 patients, respectively. The data obtained from these examinations were compared with hysterosalpingography (HSG) and clinical modalities including hysteroscopy, sounding and histopathologic findings after surgery. The concordance of outlining cervical extension was between MR and hysteroscopy 85 per cent, and between US and hysteroscopy 50 per cent. Deep myometrial tumor invasion was suggested in 4/10 patients by US and in 6/20 by MR, and was confirmed in all but one in each group at histologic examination of the resected uterus. There were no false negative US or MR examinations. Transabdominal US did not prove accurate in defining local endometrial carcinoma (distinguishing between stages I and II), but it may be used as an additional tool in revealing myometrial invasion. MR, however, seems to refine the delineation of uterine tumor growth. (orig.)

  14. Ultrasonographic finding of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Han Soo; Woo, Seong Ku; Lim, Jae Hoon; Ko, Young Tae; Kim, Ho Kyun; Kim, Soon Yong [Kyung Hee University Hospital, Seoul (Korea, Republic of)

    1983-12-15

    With the development of gray scale ultrasonography, detection and evaluation of hepatic parenchymal disease including space occupying lesion are easily performed and frequently used in the world. Thrity five cases of histopathologically proven and ultrasonographically suggested hepatocellular carcinoma are retrospectively studied. The results were as follows; 1. Ultrasonographic findings of hepatocellular carcinoma show hyperechoic pattern in 22 cases (63%), hypoechoic pattern in 2 cases (6%), and mixed pattern in 11 cases (31%). 2. The margin of tumor is ill-defined in 19 cases (54%) and well defined in16 cases (46%). 3. The size of tumor by sonographic measurement was large than 5 cm in diameter in 33 cases (94%). 4. The number of tumor is solitary in 19 cases and multiple in 16 cases. The sites of involved lobe were right lobe in 22 cases (63%), left lobe in 2 cases (6%), and both lobes in 11 cases (31%). 5. Associated sonographic findings were hepatomegaly with focal contour change in 25 cases (71%), splenomegaly in 16 cases (46%), cirrhosis of liver in 15 cases (43%), ascites in 11 cases (31%) and tumoral thrombosis in portal vein in 8 cases (23%). 6. The sex ratio is 6 : 1 male predominence and the age ranges from 32 to 76 years with highest incidence in 5th and 6th decades.

  15. External auditory canal carcinoma treatment

    International Nuclear Information System (INIS)

    Matsuda, Yoichi; Ueda, Yoshihisa; Kurita, Tomoyuki; Nakashima, Tadashi

    2010-01-01

    External auditory canal (EAC) carcinomas are relatively rare conditions lack on established treatment strategy. We analyzed a treatment modalities and outcome in 32 cases of EAC squamous cell carcinoma treated between 1980 and 2008. Subjects-17 men and 15 women ranging from 33 to 92 years old (average: 66) were divided by Arriaga's tumor staging into 12 T1, 5 T2, 6 T3, and 9 T4. Survival was calculated by the Kaplan-Meier method. Disease-specific 5-year survival was 100% for T1, T2, 44% for T3, and 33% for T4. In contrast to 100% 5-year survival for T1+T2 cancer, the 5-year survival for T3+T4 cancer was 37% with high recurrence due to positive surgical margins. The first 22 years of the 29 years surveyed, we performed surgery mainly, and irradiation or chemotherapy was selected for early disease or cases with positive surgical margins as postoperative therapy. During the 22-years, 5-year survival with T3+T4 cancer was 20%. After we started superselective intra-arterial (IA) rapid infusion chemotherapy combined with radiotherapy in 2003, we achieved negative surgical margins for advanced disease, and 5-year survival for T3+T4 cancer rise to 80%. (author)

  16. HPV Carcinomas in Immunocompromised Patients

    Directory of Open Access Journals (Sweden)

    Nicole M. Reusser

    2015-01-01

    Full Text Available Human papillomavirus (HPV infection is the most common sexually transmitted disease worldwide and can result in pre-malignancies or overt malignancies of the skin and mucosal surfaces. HPV-related illnesses are an important personal and public health problem causing physical, mental, sexual and financial detriments. Moreover, this set of malignancies severely affects the immunosuppressed population, particularly HIV-positive patients and organ-transplant recipients. There is growing incidence of HPV-associated anogenital malignancies as well as a decrease in the average age of affected patients, likely related to the rising number of high-risk individuals. Squamous cell carcinoma is the most common type of HPV-related malignancy. Current treatment options for HPV infection and subsequent disease manifestations include imiquimod, retinoids, intralesional bleomycin, and cidofovir; however, primary prevention with HPV vaccination remains the most effective strategy. This review will discuss anogenital lesions in immunocompromised patients, cutaneous warts at nongenital sites, the association of HPV with skin cancer in immunocompromised patients, warts and carcinomas in organ-transplant patients, HIV-positive patients with HPV infections, and the management of cutaneous disease in the immunocompromised patient.

  17. Pulmonary mass with renal carcinoma

    International Nuclear Information System (INIS)

    Giraldo Estrada, Horacio

    2003-01-01

    The paper analyzes the case of a 73 year-old patient, masculine sex, obese, with syndrome of obstructive apnoea of the dream, reason why he uses nasal CPAP for 2 at 3 hours in the night for 2 years. It was intervened by renal carcinoma of clear cells at the end of the year 2002. The Rx of thorax preoperative had been informed as normal, but in an abdominal preoperative tomography, the presence of a mass was suggested in the base right lung thorax, reason why Tac is practiced, which demonstrates an irregular nodular image clearly, stuck to the pleura that that suggests unique metastasis of the renal carcinoma. Masses neither mediastinal adenopaties were not evidenced. In the post-operative of their nefrectomy the patient presented dehiscence of the sutures and evisceration, reason why he was re-intervened with primary closing and managed with antibiotics, achieving appropriate scaring. It was programmed for resection of the pulmonary mass. Their evolution and discusses of the case are studied

  18. Treatment Results of Supraglottic Carcinoma

    International Nuclear Information System (INIS)

    Park, Charn Il; Kim, Kwang Hyun

    1984-01-01

    From March of 1979 through December of 1982, 84 patients with supraglottic carcinoma were seen and evaluated in the Department of Therapeutic Radiology, Seoul National University Hospital. Of these, 68 patients were treated with a curative intent by employing either radiotherapy alone or a combined approach of radiotherapy plus surgery. Sixteen patients refused to complete the treatment program. Seventy-three per cent of patients had T3 and T4 lesions and 63% of patients had lymph node metastasis at the time of diagnosis. Actuarial recurrence-free survival at 3 year was: Stage I-III 62%, Stage III 54%, Stage IV 18%. For T1-2, T3 and T4 lesions, the actuarial recurrence free survival at 3 years were 50%, 34% and 9% respectively. Of 39 patients with treatment failure, 29 patients (78%) had uncontrol or ultimate recurrence at the primary site while 9 patients having lymph node recurrence, 14 patients(21%) had lymph node recurrence, and 5 patients had distant metastasis. It is suggested that planned combined radiotherapy is indicated for advanced but respectable supraglottic carcinoma

  19. Prostate carcinoma: current diagnostic strategy

    International Nuclear Information System (INIS)

    Schwarzschild, Monica Maria Agata Stiepcich; Ferraz, Maria Lucia Cardoso Gomes; Oliveira, Jose Marcelo Amatuzzi; Andriolo, Adagmar

    2001-01-01

    Prostate cancer is the second cause of cancer death in men in the Western world. Despite progress in the treatment of advanced disease, it is recognized that the only possibility of reduction in prostate cancer death is nearly diagnosis when the disease is localized. In the present study our aim was to review the current strategy for diagnosis of prostate carcinoma. Prostate-specific antigen (PSA) is a valuable tumor marker and has demonstrated effectiveness in detecting prostate carcinoma, monitoring therapeutic efficacy, and disclosing disease recurrence. However, alternative methods are been proposed just as the free to total PSA ratio, PSA density, PSA velocity, which could improve the diagnostic sensibility and the specificity. Image diagnostic methods include transrectal ultra sound, computerized tomography, magnetic resonance image, and bone cintigraphy. The ultra sound is the best approach to guide the prostate biopsy and, together with the magnetic resonance is still useful for loco regional graduation. Computerized tomography as magnetic resonance image can be used for identification of linfonodal involvement. Bone cintigraphy is the best method for the identification of metastatic disease. (author)

  20. Ampullary carcinoma with cutaneous metastasis

    Directory of Open Access Journals (Sweden)

    I-Ting Liu

    2016-06-01

    Full Text Available Carcinoma of the ampulla of Vater is a rare gastrointestinal tumor. Additionally, cutaneous metastasis from such an internal malignancy is also uncommon. We reported the case of a 55-year-old man afflicted with ampullary carcinoma with cutaneous metastasis. The patient did not undergo the standard Whipple procedure but received chemotherapy due to apparent left neck lymph node metastasis noted by initial PET/CT imaging. The skin metastasis presented as a left neck infiltrating purpuric lesion, which was confirmed by skin biopsy approximately one year after the patient's disease was first diagnosed. Thereafter, the patient received further chemotherapy pursuant to his course of medical management. Skin metastasis usually represents a poor patient prognosis. In these cases, treatment of cutaneous metastasis typically includes systemic chemotherapy and local management such as radiation therapy or tumor excision. And when choosing a chemotherapy regimen for the ampullary cancer, the histological subtypes (intestinal or pancreatobiliary should be comprehensively considered. In our review of the literature, the intestinal type seems to have less distant lymph node metastasis, advanced local invasion, as well as recurrence than pancreatobiliary type of ampullary cancer.

  1. Seudolinfoma cutáneo “B”, variedad Linfocitoma cutis: A propósito de un caso CutaneousB-cell pseudolymphoma, Lymphocytoma cutis variety: Apropos of a case

    Directory of Open Access Journals (Sweden)

    José Manuel Díaz Fernández

    2006-12-01

    Full Text Available Se presenta el caso de una paciente con un seudolinfoma cutáneo de células “B” variedad Linfocitoma cutis, entidad caracterizada por procesos reactivos de la piel que pueden confundirse clínica e histopatológicamente con linfomas malignos auténticos. El mayor reto que se presenta en estos casos espoder diferenciar estas 2 entidades entre sí, pues ambas se consideran el espectro de una misma entidad, lo cual le confiere varias implicaciones diagnósticas, terapéuticas y patogénicas, por lo que los pacientes se deben mantener bajo vigilancia estrecha. Se revisan aspectos inmunopatológicos, histológicos y terapéuticos. Esta es la primera observación de presentación faciales nuestro medio.The case of a patient with a cutaneous B-cell pseudolymphoma, Lymphocytoma cutis variety, an entity characterized by reactive processes of the skin that may be clinical and histopathologically mistaken for authentic malignant lymphomas. The greatest challenge for these cases is to be able to differentiate these 2 entities between themselves, since both are considered as the spectrum of a same entity, which confers various diagnostic, therapeutic and pathogenic implications. That's why, the patients should be under close surveillance. Immunopathological, histological and therapeutic aspects are reviewed. This is the first observation of facial manifestations of these entities in our environment.

  2. INFESTAÇÃO DE MOSCAS-DAS-FRUTAS EM VARIEDADES DE MANGA (Mangifera indica L. NO ESTADO DE GOIÁS INFESTATION OF FRUIT FLY IN VARIETIES OF MANGO IN THE STATE OF GOIÁS

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    Juracy Rocha Braga Filho

    2007-09-01

    Full Text Available

    A mangueira (Mangifera indica L. é a principal espécie frutífera da família Anacardiaceae cultivada no Brasil. A expansão dessa cultura nos últimos anos, tanto para o consumo in natura como para a exportação, é limitada por diversas pragas, principalmente pelas moscas-das-frutas. No período de setembro de 1999 a fevereiro de 2000 foi estudado o nível de infestação natural de moscas-das-frutas em dez variedades de manga, em três municípios do Estado de Goiás. Foram obtidos 1.195 pupários, dos quais emergiram 484 adultos de Anastrepha (80% dos insetos identificados, 104 lonqueídeos (17,2 % e 17 braconídeos (2,8%. Das fêmeas identificadas, 77,9% pertenciam ao gênero Anastrepha e 22,08%, a Neosilba. As espécies identificadas foram: A. obliqua (48,78%, A. fraterculus (47,97%, A. sororcula (2,03% e A. turpiniae (1,22%, referida pela primeira vez em frutos de manga no Estado. O parasitóide Doryctobracon areolatus foi encontrado em larvas/pupas de moscas-das-frutas, nas variedades Imperial e Tommy Atkins. As variedades com maiores índices de infestação foram Imperial (15,3 pupários/fruto e 73,611 pupários/kg de frutos, em Goiânia, e Tommy Atkins (7,0 pupários/fruto e 17,503 pupários/kg de frutos, no município de Orizona. Em Goiânia, a variedade Bourbon não foi infestada, e a Sabina apresentou um índice de infestação de 0,076 pupários/fruto e 0,363 pupários/ kg de frutos.

    PALAVRAS-CHAVE: Insecta; Diptera; Tephritoidea; avaliação de danos; parasitóides.

    Mango (Mangifera indica L. production has expanded greatly in Brazil but several pests, especially fruit flies, have limited both fresh fruit consumption and

  3. Evaluación de dos sistemas de riego por goteo en la producción y la calidad de la fruta de pera (Pyrus communis L. variedad Triunfo de Viena

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    María Cristina Arenas-Bautista

    2012-01-01

    Full Text Available El objetivo del presente estudio fue evaluar el efecto de la utilización del sistema de doble línea de riego versus el tradicional de una línea por hilera de plantas en la producción y calidad de la pera (Pyrus communis variedad Triunfo de Viena. La investigación se basó en la aplicación de dos tratamientos definidos, uno consistente en una línea de goteo por hilera de plantas con seis emisores de 8 lt/h y otro, con dos líneas de goteo por hilera de plantas con tres emisores de 8 lt/h cada uno Se utilizaron sensores Watermark para medir y controlar el potencial matricial del suelo. Se cubrió el 100% de la evapotranspiración potencial que fue de 55.5 mm/mes. Los resultados obtenidos de las variables hídricas del suelo permitieron programar el riego y garantizar el suministro de agua adecuado en el periodo de déficit hídrico. El tratamiento de doble línea no difirió significativamente del control, lo que indica que utilizar una línea de riego permite obtener una producción y calidad similares con un menor costo inicial del equipo.

  4. Evaluación de dos sistemas de riego por goteo en la producción y la calidad de la fruta de pera (Pyrus communis L. variedad Triunfo de Viena

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    Vélez Sánchez Javier Enrique

    2012-03-01

    Full Text Available El objetivo del presente estudio fue evaluar el efecto de la utilización del sistema de doble línea de riego versus el tradicional de una línea por hilera de plantas en la producción y calidad de la pera (Pyrus communis variedad Triunfo de Viena. La investigación se basó en la aplicación de dos tratamientos definidos, uno consistente en una linea de goteo por hilera de plantas con seis emisores de 8 lt/h y otro, con dos lineas de goteo por hilera de plantas con tres emisores de 8 lt/h cada uno Se utilizaron sensores Watermark para medir y controlar el potencial matricial del suelo. Se cubrió el 100% de la evapotranspiración potencial que fue de 55.5 mm/mes. Los resultados obtenidos de las variables hídricas del suelo permitieron programar el riego y garantizar el suministro de agua adecuado en el periodo de deficit hidrico. El tratamiento de doble linea no difirió significativamente del control, lo que indica que utilizar una línea de riego permite obtener una producción y calidad similares con un me- nor costo inicial del equipo.

  5. Estandarización de un medio de cultivo adecuado para la regeneración de tallos a partir de hojas, utilizando dos variedades colombianas de papa (Solanum tuberosum L..

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    Rodríguez Esperanza

    2000-06-01

    Full Text Available Este estudio reporta un sistema de regeneración simple y eficiente a partir de explantes de hoja de Diacol Capira (DC y Parda Pastusa (PP, dos variedades comerciales de papa cultivadas en Colombia. Un medio único de cultivo es usado tanto para la inducción de callos como para la regeneración de tallos. Se comparó el efecto de diferentes relaciones entre auxinas y citoquininas adicionadas a un medio selectivo para regenerar tallos (4.3 g/L de Sales de Murashige and Skoog (1962, 30 g/L sacarosa, 0.5g/L tiamina, 1 mg/L ácido giberélico, 40mg/L ácido ascórbico y 1.7 g/L fitagel pH 5.7 a partir de explantes de hoja. El análisis de los resultados demostró que todos los explantes de hojas de DC, tratados con zeatina ribósida- ZR (3mg/L, ácido indol -3- acético - AIA (1mg/L y todos los explantes de hojas de PP tratados con ZR (3 mg/L, regeneraron plántulas fuertes y morfológicamente normales. El medio fue utilizado en posteriores experimentos de transformación genética.

  6. Efecto de Inhibidores de Pardeamiento y la Técnica de Atmósfera Modifcada en Mango (Mangifera Indica L Variedad Van Dyke Mínimamente Procesado

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    Jesús Antonio Galvis Vanegas

    2008-06-01

    Full Text Available El mango (Mangifera indica L variedad Van Dyke es un fruto apetecido a nivel nacional e internacional por su agradable aroma, intenso color amarillo y buen balance de ácidos/azúcares. La investigación se desarrolló en dos etapas. En la primera se determinó la respuesta de los trozos de fruto a la aplicación de tres inhibidores de pardeamiento en dos concentraciones: (ácido cítrico a 150 y 300 ppm; ácido ascórbico a 250 y 500 ppm y L-Cysteina a 100 y 200 ppm, con relación a la calidad y tiempo de almacenamiento; en la segunda, se estableció el tiempo de vida útil de modo que conserve sus características organolépticas, cuando se combina el mejor inhibidor de pardeamiento, con la técnica de atmósfera modificada en concentraciones de 5% de CO2, 5% de O2 y 90% de N2, empleando dos tipos de empaque: canastillas plásticas y bandejas de icopor, colocadas dentro de bolsas de polietileno de baja densidad (LDPE calibre 2 (0.035 mm de espesor.

  7. Characterization of Sugars and Organic Acids in Commercial Varieties of Table Grapes Caracterización de Azúcares y Ácidos Orgánicos en Variedades Comerciales de Uva de Mesa

    Directory of Open Access Journals (Sweden)

    Pablo Muñoz-Robredo

    2011-09-01

    los atributos primordiales para su consumo fresco. Sin embargo, la mayor��a de los estudios realizados al respecto se han desarrollado en uva para la producción de vino, la cual crece, se cultiva y se procesa de manera diferente a la uva de mesa. Por lo tanto, el objetivo del presente trabajo se centró en caracterizar los cambios en azúcares y ácidos orgánicos a lo largo de su desarrollo en las variedades ‘Thompson Seedless’, ‘Red Globe’, y ‘Crimson Seedless’, producidas bajo las mismas condiciones agroclimáticas. Para cada variedad se realizaron muestreos semanales desde 2 semanas previas a pinta hasta la cosecha comercial. Los azúcares y ácidos orgánicos fueron cuantificados mediante cromatografía líquida de alto rendimiento (HPLC equipados con detectores evaporativos de dispersión de la luz (ELSD y ultra violeta, respectivamente. El rango de concentraciones de ácidos y azúcares encontrados en uva fueron los siguientes: ácido tartárico, 1,28-7,45 g L-1; ácido málico, 0,38-29,92 g L-1, ácido cítrico trazas-1,03 g L-1; fructosa, 0,15-8,74 g (azúcar 100 g (uva-1; glucosa, 0,19-8,71 g (azúcar 100 g (uva-1 and sacarosa 0.02-0.91 g (azúcar 100 g(uva-1. Entre los azúcares, glucosa fue la más abundante en etapas tempranas y luego disminuyó hasta el período de cosecha, cuando la cantidad de fructosa y glucosa converge en un promedio de 47% para cada azúcar. A pesar de que los ácidos orgánicos alcanzaron un nivel constante entre 3 a 4 semanas antes de su cosecha, existen diferencias importantes en el perfil de ácidos orgánicos entre las variedades, con ‘Thompson Seedless’ mostrando la más baja relación de ácidos tartárico/málico de 1,19. Estas diferencias son un punto importante al considerar el sabor general para cada variedad.

  8. Identification of Prognostic Biomarkers for Progression of Invasive Squamous Cell Carcinoma

    Science.gov (United States)

    2017-10-09

    Carcinoma, Squamous Cell; Carcinoma, Squamous; Squamous Cell Carcinoma; Lung Neoplasms; Cancer of Lung; Cancer of the Lung; Lung Cancer; Neoplasms, Lung; Neoplasms, Pulmonary; Pulmonary Cancer; Pulmonary Neoplasms

  9. Breast carcinomas: why are they missed?

    Science.gov (United States)

    Muttarak, M; Pojchamarnwiputh, S; Chaiwun, B

    2006-10-01

    Mammography has proven to be an effective modality for the detection of early breast carcinoma. However, 4-34 percent of breast cancers may be missed at mammography. Delayed diagnosis of breast carcinoma results in an unfavourable prognosis. The objective of this study was to determine the causes and characteristics of breast carcinomas missed by mammography at our institution, with the aim of reducing the rate of missed carcinoma. We reviewed the reports of 13,191 mammograms performed over a five-year period. Breast Imaging Reporting and Data Systems (BI-RADS) were used for the mammographical assessment, and reports were cross-referenced with the histological diagnosis of breast carcinoma. Causes of missed carcinomas were classified. Of 344 patients who had breast carcinoma and had mammograms done prior to surgery, 18 (5.2 percent) failed to be diagnosed by mammography. Of these, five were caused by dense breast parenchyma obscuring the lesions, 11 were due to perception and interpretation errors, and one each from unusual lesion characteristics and poor positioning. Several factors, including dense breast parenchyma obscuring a lesion, perception error, interpretation error, unusual lesion characteristics, and poor technique or positioning, are possible causes of missed breast cancers.

  10. Resected Pleomorphic Carcinoma of the Gallbladder

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    Masanari Shimada

    2012-12-01

    Full Text Available Pleomorphic carcinoma is a rare lesion and the literature contains few reports of pleomorphic carcinoma of the gallbladder. The present study reports a rare case of primary pleomorphic carcinoma of the gallbladder for which we were able to perform curative surgery. A 77-year-old woman with dementia developed nausea and anorexia, and computed tomography demonstrated irregular thickening of the gallbladder wall. Drip infusion cholangiography and endoscopic retrograde cholangiopancreatography revealed no stenosis of the common and intrahepatic bile ducts. We suspected carcinoma of the gallbladder without lymph node metastasis and invasion to the common bile duct. We guessed it to be resectable and performed open laparotomy. At operation, the fundus of the gallbladder was adherent to the transverse colon, but no lymph node and distant metastases were detected. Therefore, we performed curative cholecystectomy with partial colectomy. Histopathology and immunostaining showed coexistence of an adenocarcinoma, squamous cell carcinoma and sarcomatous tumor of spindle-shaped cell, as well as transition zones between these tumors. We diagnosed stage I pleomorphic carcinoma of the gallbladder. No recurrence has been observed for one and a half years. The biological behavior of pleomorphic carcinoma of the gallbladder remains unknown. It will be necessary to accumulate more case reports of this tumor in order to define diagnostic criteria.

  11. Incidence of ascariasis in gastric carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Woo; Rhee, Hak Song; Bahk, Yong Whee [St Mary' s Hospital Catholic Medical College, Seoul (Korea, Republic of)

    1972-09-15

    Prompted by the finding that the radiological incidence of small bowel ascariasis in the patient with gastric carcinoma was unexpectedly lower than the incidence in the normal population, a clinical study was performed to investigate possible relationship between gastric carcinoma and intestinal ascariasis. As a preliminary survey, we reviewed the radiological incidence of ascariasis in a total of 2,446 cases of upper GI series performed at the Department of Radiology, St Mary's Hospital Catholic Medical College. These included 1,573 normal subjects, 146 gastric carcinoma patients, 100 benign gastric ulcer and 249 duodenal ulcer patients and 378 other upper GI diseases. Following the preliminary study, a more accurate parasitologic study was conducted in another 578 normal subjects and 51 gastric carcinoma patients. The radiological incidences of ascaiasis in normal subjects and gastric carcinoma patients were 15.1% and 28.1%, respectively. The incidence of overall helminthiasis including ascaris lumbricoides, trichocephalus trichiurus and trichostrongyloides orientalis in normal subjects of the present series was 73.5%. This figure is virtually the same with 69.1% of the general population incidence reported by Kim, et al. (1971), but the incidence in gastric carcinoma patients was 94.1%. The high incidence pattern of overall helminthiasis in gastric carcinoma patients is, however, reversed as for as ascariasis is concerned. Thus, the incidence of ascariasis of gastric carcinoma patients was much lower than that of normal subjects (9.8% vs 19.4%). From the present observation, it is postulated that there can be some possible antagonistic relationship between evolution of gastric carcinoma and small bowel infestation of ascaris lumbricoides.

  12. Incidence of ascariasis in gastric carcinoma

    International Nuclear Information System (INIS)

    Kim, Jong Woo; Rhee, Hak Song; Bahk, Yong Whee

    1972-01-01

    Prompted by the finding that the radiological incidence of small bowel ascariasis in the patient with gastric carcinoma was unexpectedly lower than the incidence in the normal population, a clinical study was performed to investigate possible relationship between gastric carcinoma and intestinal ascariasis. As a preliminary survey, we reviewed the radiological incidence of ascariasis in a total of 2,446 cases of upper GI series performed at the Department of Radiology, St Mary's Hospital Catholic Medical College. These included 1,573 normal subjects, 146 gastric carcinoma patients, 100 benign gastric ulcer and 249 duodenal ulcer patients and 378 other upper GI diseases. Following the preliminary study, a more accurate parasitologic study was conducted in another 578 normal subjects and 51 gastric carcinoma patients. The radiological incidences of ascaiasis in normal subjects and gastric carcinoma patients were 15.1% and 28.1%, respectively. The incidence of overall helminthiasis including ascaris lumbricoides, trichocephalus trichiurus and trichostrongyloides orientalis in normal subjects of the present series was 73.5%. This figure is virtually the same with 69.1% of the general population incidence reported by Kim, et al. (1971), but the incidence in gastric carcinoma patients was 94.1%. The high incidence pattern of overall helminthiasis in gastric carcinoma patients is, however, reversed as for as ascariasis is concerned. Thus, the incidence of ascariasis of gastric carcinoma patients was much lower than that of normal subjects (9.8% vs 19.4%). From the present observation, it is postulated that there can be some possible antagonistic relationship between evolution of gastric carcinoma and small bowel infestation of ascaris lumbricoides

  13. Basal cell carcinoma, squamous cell carcinoma and melanoma of the head and face.

    Science.gov (United States)

    Feller, L; Khammissa, R A G; Kramer, B; Altini, M; Lemmer, J

    2016-02-05

    Ultraviolet light (UV) is an important risk factor for cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma and cutaneous melanoma of the skin. These cancers most commonly affect persons with fair skin and blue eyes who sunburn rather than suntan. However, each of these cancers appears to be associated with a different pattern of UV exposure and to be mediated by different intracellular molecular pathways.Some melanocortin 1 receptor (MC1R) gene variants play a direct role in the pathogenesis of cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma and cutaneous melanoma apart from their role in determining a cancer-prone pigmentory phenotype (fair skin, red hair, blue eyes) through their interactions with other genes regulating immuno-inflammatory responses, DNA repair or apoptosis.In this short review we focus on the aetiological role of UV in cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma and cutaneous melanoma of the skin, and on some associated biopathological events.

  14. Caracterizacion fisiológica del crecimiento y desarrollo del fruto de mango (mangifera indica l. variedad van dyke en el municipio de el Espinal

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    Galvis Jose Antonio

    2002-12-01

    ="font-size: 12pt; font-family: "> 

    Se realizó el seguimiento de los cambios ocurridos durante el crecimiento y desarrollo del mango Variedad Van Dyke, desde la antesis hasta la madurez fisiológica: Diámetros longitudinal, transversal, el volumen, la gravedad específica, el peso fresco y seco, color de la corteza y de la pulpa y la Intensidad Respiratoria. El diseño experimental empleado fue completamente al azar.

     

    Se estableció que el tiempo que transcurre desde la antesis hasta alcanzar la madurez fisiológica es de 90 días. El crecimiento del fruto es de tipo Sigmoidal Simple. Se identificaron 3 etapas durante el crecimiento. El análisis de regresión permitió establecer modelos 1ineales para las características físicas.

     

    El fruto presentó alta intensidad respiratoria en los primeros días del crecimiento y fue disminuyendo hasta alcanzar valores mínimos al final de la etapa de crecimiento. Hubo una alta correlación inversa entre la I.R. y las variables físicas medidas.

     

  15. Response of micropropagated sugarcane varieties to inoculation with endophytic diazotrophic bacteria Resposta da inoculação com bactérias diazotróficas endofíticas em duas variedades micropropagadas de cana-de-açúcar

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    André Luiz Martinez de Oliveira

    2003-11-01

    Full Text Available Previous studies estimated that sugarcane could obtain up to 60% of total nitrogen accumulated from BNF. Here a mixture of five endophytic diazotrophic strains was tested in a field trial, inoculated in two micropropagated sugarcane varieties and three locals, to determine the effects on commercial crop conditions. The sugarcane plantlets were inoculated in vitro, and after 17 months of growing in the field, the productivity and BNF contribution showed to be influenced by the plant genotype and soil type. The highest BNF contributions was observed in the poorest soil for both varieties. Smaller increases in productivity were observed for SP 701143 variety grown in soil with low or medium fertility. In contrast, a decrease in the stem productivity was observed in the SP 813250 variety grown in the three localities.Experimentos anteriores estimaram que a cana-de-açúcar pode obter até 60% do N acumulado via fixação biológica de nitrogênio (FBN. Neste trabalho, os efeitos da inoculação da mistura de cinco espécies de bactérias diazotróficas endofíticas foram testados em duas variedades de cana-de-açúcar micropropagadas, sob condições de campo. Após 17 meses de crescimento, a produtividade e a FBN apresentaram influência do genótipo vegetal e da localidade de cultivo. As maiores contribuições via FBN foram observadas no solo de menor fertilidade, para ambas variedades de cana-de-açúcar. Pequenos aumentos de produtividade foram observados para a variedade SP 701143 nos solos de baixa e média fertilidade. Por outro lado, a inoculação na variedade SP 813250 apresentou decréscimo de produtividade nos três tipos de solo testados.

  16. Characterization of sour (Prunus cerasus L. and sweet cherry (Prunus avium L. varieties with five isozyme systems Caracterização de variedades de ginjeira (Prunus cerasus L. e cerejeira (Prunus avium L. em cinco sistemas isoenzimáticos

    Directory of Open Access Journals (Sweden)

    Remedios Morales Corts

    2008-03-01

    Full Text Available Extracts from young leaves of nine sweet cherry (Prunus avium L. and eight sour cherry (Prunus cerasus L. varieties, located in the germplasm collection of the 'Direção Regional de Agricultura da Beira Interior' (Fundão, Portugal, were analysed for five isozyme systems in order to characterise these varieties and detect problems of synonymies and homonymies that frequently present. The sweet and sour cherry varieties analyzed showed low isoenzymatic polymorphism, being PGM and PGI the systems with the highest discrimination power. These systems presented seven and five different zymogrames, respectively. IDH showed four patterns. SKDH and 6-PGD grouped the varieties only into two patterns. The evident and discriminant restrictions of this type of analysis had got results that have only been a complement for agronomical and morphological characterization.Nove extratos de folhas com desenvolvimento encompleto foram obtidos de 9 variedades de cerejeira (Prunus avium L. e 8 de ginjeira (Prunus cerasus L., localizados no campo de germoplasma da "Direcção Regional de Agricultura da Beira Interior" (Fundão, Portugal. Esses extratos foram analisados para 5 sistemas isoenzimáticos a fim de caracterizar essas variedades e simultaneamente detectar sinonímias e homonímias, freqüentes neste tipo de estudos. As variedades de cerejeira e ginjeira analisadas mostraram baixo polimorfismo isoenzimático, sendo que os sistemas PGM e PGI mostraram maior poder de discriminação. Estes sistemas apresentaram 7 e 5 zimogramas diferentes, respectivamente. IDH mostrou 4 padrões. SKDH e 6-PGD agruparam as variedades em 2 padrões. Os evidentes limites discriminatórios desse tipo de análise serviram somente de complemento para a caracterização agronômica e morfológica.

  17. Neglected Giant Scalp Basal Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    Anne Kristine Larsen, MD

    2014-03-01

    Full Text Available Summary: Rarely, basal cell carcinoma grows to a giant size, invading the underlying deep tissue and complicating the treatment and reconstruction modalities. A giant basal cell carcinoma on the scalp is in some cases treated with a combination of surgery and radiation therapy, resulting in local control, a satisfactory long-term cosmetic and functional result. We present a case with a neglected basal cell scalp carcinoma, treated with wide excision and postoperative radiotherapy, reconstructed with a free latissimus dorsi flap. The cosmetic result is acceptable and there is no sign of recurrence 1 year postoperatively.

  18. Classification, staging and radiotherapy of bronchial carcinoma

    International Nuclear Information System (INIS)

    Noordijk, E.M.

    1983-01-01

    This thesis reports a study performed to evaluate the stage classification of bronchial carcinoma published by Thomas in 1963. The study was done in the radiotherapy department of a teaching hospital, and had three parts: a comparative analysis of the classifications and stage divisions described in the literature on bronchial carcinoma; an evaluation of the theoretical basis of the classification system introduced by Thomas as well as of the practical applicability of the division into stages, with respect to the assessment of the prognosis and the choice of therapy; and an analysis of various aspects of irradiation as well as of a number of prognostic factors in bronchial carcinoma. (Auth.)

  19. Otologic disorders following radiotherapy for nasopharyngeal carcinoma

    International Nuclear Information System (INIS)

    Wakisaka, Hiroyuki; Hyodo, Masamitsu; Motoyoshi, Kazumi; Yamada, Hiroyuki

    2007-01-01

    Radiotherapy is widely accepted as the first choice for nasopharyngeal carcinoma. Delayed otitis of both external and middle ears is sometimes seen as a complication after radiotherapy for head and neck cancer, especially for nasopharyngeal carcinoma. They are usually hard to manage and some produces cochlear damages, finally resulting in a sensorineural hearing loss. However, these otologic disorders are tends to be overlooked, because physicians pay less attention to them than the concerning for cancer recurrence. Therefore, studies on the otologic disorders following radiotherapy are lacking. In this study, we analyzed 24 nasopharyngeal carcinoma cases retrospectively to clarify the incidence of otologic disorders induced by radiotherapy. (author)

  20. Cerrobend shielding stents for buccal carcinoma patients

    Directory of Open Access Journals (Sweden)

    Karma Yangchen

    2016-01-01

    Full Text Available Buccal carcinoma is one of the most common oral malignant neoplasms, especially in the South Asian region. Radiotherapy, which plays a significant role in the treatment of this carcinoma, has severe adverse effects. Different types of prosthesis may be constructed to protect healthy tissues from the adverse effects of treatment and concentrate radiation in the region of the tumor mass. However, the technique for fabrication of shielding stent with Lipowitz's alloy (cerrobend/Wood's alloy has not been well documented. This article describes detailed technique for fabrication of such a stent for unilateral buccal carcinoma patients to spare the unaffected oral cavity from potential harmful effects associated with radiotherapy.

  1. Metaplastic carcinoma. Breast. Relapse. Chemotherapy and Radiotherapy

    International Nuclear Information System (INIS)

    Marquez, A.; Terrasa, J.; Garcia, J.M.; Rifa, J.

    1996-01-01

    Metaplastic carcinoma of the breast is a rare tumor. The appearance of unexpected mesenchymal elements within the epithelial tumors is the squamous metaplasia. These tumors have a different clinical behaviour that classical breast carcinoma. We present a case of metaplastic mammary carcinoma with multiple relapses treated with a combination of chemotherapy and radiotherapy. The use of chemotherapy after local treatment has enhanced the relapse-free survival. The combined treatment modality seems to produce some benefit in the management of the local relapses of this neoplasms

  2. Evolution and pathology of colorectal carcinoma

    International Nuclear Information System (INIS)

    Hermanek, P.

    1986-01-01

    Numerous clinical, epidemiological, histological and experimental observations favour the adenoma-carcinoma sequence. Metastases occur only after invasion of the submucosa. The elevated rate of synchronous lesions (carcinomas and adenomas) is emphasized. In the rule, lymphatic spread precedes distant metastasis. Typing and grading should be performed according to the rules of WHO. The present UICC staging system will be replaced by a new 4th edition 1987. Early carcinoma (limited to the submucosa) has an excellent prognosis and may be treated by limited procedures (polypectomy, local excision) in the most cases. The modern concept of histology- and stage-adapted cancer therapy requires the pre-, intra- and postoperative cooperation with the pathologist. (Author)

  3. Comportamento de variedades de soja cujas sementes foram inoculadas com diferentes misturas de estirpes de Rhizobium,em latosol roxo do Estado de São Paulo Behavior of soybean varieties inoculated wtth different mixtures of Rhizobiumstrains in latosol soils of the State of São Paulo

    Directory of Open Access Journals (Sweden)

    H. A. A. Mascarenhas

    1968-01-01

    Full Text Available Em solo Latosol Roxo, estudou-se o comportamento de cinco variedades de soja cujas sementes foram inoculadas, ou não, com diferentes misturas de estirpes de Rhizobium. Na produção de sementes, a variedade Hardee foi equivalente à IAC-1 e superior às variedades E-2006, L-571 e Bienville. IAC-1 também foi superior a Bienville. A adubação nitrogenada não aumentou a produção, e as pequenas respostas aos inoculantes não foram significativas. Conquanto a área experimental nunca tivesse cultura de soja, a nodulação foi intensa em todos os canteiros, e não se notou aumento em conseqüência da inoculação experimental.The performance of five soybean varieties whose seeds were inoculated with four different mixtures of Rhizobiumstrains was studied at Ribeirão Prêto, State of São Paulo. In the seed yields, Hardee was statistically equivalent to IAC-1 and superior to L-2006, L-571 and Bienville. Mineral nitrogen did not increase the seed yields and the small responses to the inoculants were not significant. Although the experimental field had never been cropped with soybeans, the nodule formation was very good in all of the plots, so that no increase due to the experimental inoculants was observed.

  4. Carcinoma basocelular em localizações incomuns Basal cell carcinoma in unusual locations

    Directory of Open Access Journals (Sweden)

    Ane Beatriz Mautari Niwa

    2006-10-01

    Full Text Available Os autores apresentam cinco pacientes que desenvolveram carcinomas basocelulares em locais incomuns de ocorrência desse tumor. O objetivo é relatar a raridade topográfica da neoplasia cutânea e discutir o conceito de localização incomum para o carcinoma basocelular.The authors present five patients who develop basal cell carcinomas in sites this tumor rarely occurs. The aim is to report the rare location of this frequent cutaneous malignancy and to briefly discuss the concept of unusual location of basal cell carcinoma.

  5. Does multifocal papillary micro-carcinoma require radioiodine ablation?

    International Nuclear Information System (INIS)

    Punda, A.; Markovic, V.; Eterovic, D.

    2015-01-01

    Full text of publication follows. Background: the thyroid carcinomas smaller than 1 cm (micro-carcinomas) comprise a significant fraction of papillary carcinomas. Excluding clinical micro-carcinomas, which present as metastatic disease, the micro-carcinomas diagnosed by ultrasound/FNAC or incidentally have very good prognosis. However, whether or not these papillary micro-carcinomas require post-surgical radioiodine ablation remains a matter of debate. Hypothesis: multi-focality is present in majority of clinical papillary micro-carcinomas and this characteristic can be used to identify the subset of non-clinical micro-carcinomas with greater malignant potential. Methods: the data on types of differentiated thyroid carcinomas diagnosed in the period 2008-2011 in the University Hospital Split were collected. Results: there were 359 patients with thyroid carcinoma, 329 (92%) of which had papillary carcinoma. About 61% (202/329) of papillary carcinomas were micro-carcinomas; most of them were diagnosed by ultrasound/FNAC (134/202= 66%), the rest were incidentalomas (48/202=24%) and clinical micro carcinomas (20/202=10%). Sixty percent (12/20) of patients with clinical micro-carcinoma and 23 patients with non-clinical micro-carcinoma (23/182=13%) had multifocal disease. Conclusion: multifocal disease is a frequent characteristic of clinical papillary thyroid micro-carcinomas, suggesting that multi-focality presents an early stage of non-clinical micro-carcinomas with more aggressive behaviour. Thus multifocal, but not uni-focal papillary micro-carcinomas may require radioiodine ablation. (authors)

  6. Percutaneous cryoablation for hepatocellular carcinoma

    Directory of Open Access Journals (Sweden)

    Kyoung Doo Song

    2016-12-01

    Full Text Available Local ablation therapy is considered as a conventional treatment option for patients with early stage hepatocellular carcinoma (HCC. Although radiofrequency (RF ablation is widely used for HCC, the use of cryoablation has been increasing as newer and safer cryoablation systems have developed. The thermodynamic mechanism of freezing and thawing used in cryoablation is the Joule-Thomson effect. Cryoablation destroys tissue via direct tissue destruction and vascular-related injury. A few recent comparative studies have shown that percutaneous cryoablation for HCCs is comparable to percutaneous RF ablation in terms of long term therapeutic outcomes and complications. Cryoablation has several advantages over RF ablation such as well visualization of iceball, no causation of severe pain, and lack of severe damage to great vessels and gallbladder. It is important to know the advantages and disadvantages of cryoablation compared with RF ablation for improvement of therapeutic efficacy and safety.

  7. Medical treatment of hepatocellular carcinoma.

    Science.gov (United States)

    Granito, Alessandro; Bolondi, Luigi

    2009-12-16

    Hepatocellular carcinoma (HCC) is the fifth most common neoplasm and the third leading cause of cancer-related deaths worldwide. Cirrhosis, most often due to viral hepatitis, is the predominant risk factors for HCC and geographical differences in both risk factors and incidence are largely due to epidemiological variations in hepatitis B and C infection. Hepatic function is a relevant parameter in selecting therapy in HCC. The current clinical classification of HCC split patients into 5 stages, with a specific treatment schedule for any stage. As patients with early stages can receive curative treatments, such as surgical resection, liver transplantation or local ablation, surveillance program in high-risk populations has become mandatory. Sorafenib, a multikinase inhibitor, has recently shown survival benefits in patients at advanced stage of disease. Hopefully, new molecular targeted therapies and their combination with sorafenib or interventional and surgical procedures, should expand the therapeutic armamentarium against HCC.

  8. Medullary carcinoma of the thyroid

    International Nuclear Information System (INIS)

    Samuel, A.M.; Pradhan, S.A.; D'Cruz, A.; Shah, D.H.

    1999-01-01

    Medullary thyroid carcinoma is a biologically distinct form of thyroid cancer and accounts for 5-10% of all thyroid neoplasms. Twenty percent of MTC can occur in a familial setting either by itself or as part of the multiple endocrine neoplasm syndromes. A disciplined approach is necessary in the work-up of these patients to rule out coexistent endocrine tumors (pheochromocytomas and parathyroid). Cacitonin is a sensitive tumor marker secreted by MTC that is of prognostic value and important in the follow-up of patients. Surgery is the mainstay of treatment with a total thyroidectomy and centre compartment clearance being the minimum for patients without cervical adenopathy. Radiotherapy has a limited role and is only indicated as a palliative measure in patients with advanced/metastatic disease not amenable to surgery

  9. [Radiofrequency ablation of hepatocellular carcinoma].

    Science.gov (United States)

    Widmann, Gerlig; Schullian, Peter; Bale, Reto

    2013-03-01

    Percutaneous radiofrequency ablation (RFA) is well established in the treatment of hepatocellular carcinoma (HCC). Due to its curative potential, it is the method of choice for non resectable BCLC (Barcelona Liver Clinic) 0 and A. RFA challenges surgical resection for small HCC and is the method of choice in bridging for transplantation and recurrence after resection or transplantation. The technical feasibility of RFA depends on the size and location of the HCC and the availability of ablation techniques (one needle techniques, multi-needle techniques). More recently, stereotactic multi-needle techniques with 3D trajectory planning and guided needle placement substantially improve the spectrum of treatable lesions including large volume tumors. Treatment success depends on the realization of ablations with large intentional margins of tumor free tissue (A0 ablation in analogy to R0 resection), which has to be documented by fusion of post- with pre-ablation images, and confirmed during follow-up imaging.

  10. Carcinoma of the thoracic esophagus

    International Nuclear Information System (INIS)

    Herskovic, A.M.; Leichman, L.; Lattin, P.B.

    1987-01-01

    The authors analyzed all cases of thoracic esophagel carcinoma seen from 1980 to 1984 inclusive, plus an additional 22 cases from a pilot study at Wayne State University. Most patients received preoperative combination radiation and chemotherapy. Eighty-nine patients completed treatment (5-fluorouracil, cisplatin, and radiation therapy) as in both the RTOG and SWOG national studies. Of these 89, 39 refused or were not offered planned surgery. Four patients are still alive and well. Fifty patients underwent esophagectomy; 12 patients were free of tumor at esophagectomy, and four of these are alive and well. One patient with a tumor in the resected esophagus alone is still alive. Twenty-two patients were enrolled in the pilot study in which surgery was reserved for salvage, the initial radiation volume was increased, the tumor dose was increased to 5,000 rad give continuously, and chemotherapy was increased to four courses

  11. Angiographic findings of hepatocellular carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Han, Man Chung; Cho, Byung Jae; Huh, Seung Jae; Bae, Sang Hoon; Kim, Ung Jin; Kim, Chung Yong; Kim, Noe Kyeong [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    1985-12-15

    From March 1977 to July 1979, 69 cases of angiograms of hepatocellular carcinoma were observed in Seoul National University Hospital. The findings of selective celiac and/or hepatic arteriography in total 69 cases of confirmed hepatocellular carcinoma, with clinical and laboratory findings, were analyzed. The summarized results are as follows; 1. Among 69 cases od hepatoma, 62 were male and 7 were female with sex ratio of 8.9 : 1. Peak incidence is 5th to 7th decades (72.5%). Epigastric pain, indigestion, and palpable mass in right upper quadrant were common symptoms and sign. Laboratory findings showed elevated serum alkaline phosphatase more than 5 Bodansky unit in 75.4%. Alpha-feto protein was positive in 65.2% of all the patients. 2 All 69 cases were classified into 31 cases of massive type, 22 cases of diffuse type, and 16 cases of nodular type, in accordance with angiographic gross anatomy. The frequency of angiographic findings were hypervascularities and tumor vessels (100%), tumor stainings (98.5%), arteriovenous shunt (71.0%), displacement of intrahepatic arteries (66.7%), vascular lakes and channel (59.4%). Encasement of hepatic artery and portal vein regurgitation was respectively 4 cases. Tumor mass in portal vein were 6 cases and tumor mass in hepatic vein was 1 case. 3. Intraarterial infusion of 5-FU was performed in 15 hepatoma patients, and the results were that angiographic improvement was demonstrated in 3 cases, no improvement in 8 cases, and incomplete infusion in 4 cases. 4. The selective celiac and/or hepatic angiograms are excellent diagnostic tools as well as therapeutic management for intraarterial infusion of anticancerous drugs.

  12. Angiographic findings of hepatocellular carcinoma

    International Nuclear Information System (INIS)

    Han, Man Chung; Cho, Byung Jae; Huh, Seung Jae; Bae, Sang Hoon; Kim, Ung Jin; Kim, Chung Yong; Kim, Noe Kyeong

    1985-01-01

    From March 1977 to July 1979, 69 cases of angiograms of hepatocellular carcinoma were observed in Seoul National University Hospital. The findings of selective celiac and/or hepatic arteriography in total 69 cases of confirmed hepatocellular carcinoma, with clinical and laboratory findings, were analyzed. The summarized results are as follows; 1. Among 69 cases od hepatoma, 62 were male and 7 were female with sex ratio of 8.9 : 1. Peak incidence is 5th to 7th decades (72.5%). Epigastric pain, indigestion, and palpable mass in right upper quadrant were common symptoms and sign. Laboratory findings showed elevated serum alkaline phosphatase more than 5 Bodansky unit in 75.4%. Alpha-feto protein was positive in 65.2% of all the patients. 2 All 69 cases were classified into 31 cases of massive type, 22 cases of diffuse type, and 16 cases of nodular type, in accordance with angiographic gross anatomy. The frequency of angiographic findings were hypervascularities and tumor vessels (100%), tumor stainings (98.5%), arteriovenous shunt (71.0%), displacement of intrahepatic arteries (66.7%), vascular lakes and channel (59.4%). Encasement of hepatic artery and portal vein regurgitation was respectively 4 cases. Tumor mass in portal vein were 6 cases and tumor mass in hepatic vein was 1 case. 3. Intraarterial infusion of 5-FU was performed in 15 hepatoma patients, and the results were that angiographic improvement was demonstrated in 3 cases, no improvement in 8 cases, and incomplete infusion in 4 cases. 4. The selective celiac and/or hepatic angiograms are excellent diagnostic tools as well as therapeutic management for intraarterial infusion of anticancerous drugs.

  13. Treatment Options by Stage (Merkel Cell Carcinoma)

    Science.gov (United States)

    ... factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment options ... common for Merkel cell carcinoma to recur. Treatment Option Overview Key Points There are different types of ...

  14. Treatment Option Overview (Merkel Cell Carcinoma)

    Science.gov (United States)

    ... factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment options ... common for Merkel cell carcinoma to recur. Treatment Option Overview Key Points There are different types of ...

  15. Graves' disease and Thyroid anaplasic carcinoma

    International Nuclear Information System (INIS)

    Guerrero E, Helena; Quintero A, Flor Maria; Carmona C, Antonio

    1992-01-01

    A case of a 34 year-old patient is presented, who was diagnosed with Graves' disease and developed a thyroid anaplastic carcinoma from a clinically detected nodular mass. The incidence of thyroid cancer associated with Graves' disease is revisited

  16. Salivary duct carcinoma: a Danish national study

    DEFF Research Database (Denmark)

    Breinholt, Helle; Elhakim, Mohammad Talal; Godballe, Christian

    2016-01-01

    BACKGROUND: To present the first national series of salivary duct carcinoma patients, including survival rates and an analysis of prognostic factors. METHODS: By merging three Danish nationwide registries that encompass an entire population, 34 patients diagnosed with salivary duct carcinoma from......-rank test. RESULTS: Salivary duct carcinoma showed an incidence of 0.04/100.000 inhabitants/year. Distant recurrence was seen in 52% of patients. Five-year overall survival, disease-specific survival and recurrence-free survival were 32%, 42% and 35%, respectively. Univariate analyses suggested that overall...... carcinoma incidence averages to two episodes per year in the entire Kingdom of Denmark. With half of patients in this study experiencing distant recurrences and only a third surviving at 5 years, prognosis is dismal. Advanced overall stage, vascular invasion and involved resection margins all seem...

  17. Nevoid Basal Cell Carcinoma Syndrome (Gorlin Syndrome).

    Science.gov (United States)

    Bresler, Scott C; Padwa, Bonnie L; Granter, Scott R

    2016-06-01

    Nevoid basal cell carcinoma syndrome, or basal cell nevus syndrome (Gorlin syndrome), is a rare autosomal dominantly inherited disorder that is characterized by development of basal cell carcinomas from a young age. Other distinguishing clinical features are seen in a majority of patients, and include keratocystic odontogenic tumors (formerly odontogenic keratocysts) as well as dyskeratotic palmar and plantar pitting. A range of skeletal and other developmental abnormalities are also often seen. The disorder is caused by defects in hedgehog signaling which result in constitutive pathway activity and tumor cell proliferation. As sporadic basal cell carcinomas also commonly harbor hedgehog pathway aberrations, therapeutic agents targeting key signaling constituents have been developed and tested against advanced sporadically occurring tumors or syndromic disease, leading in 2013 to FDA approval of the first hedgehog pathway-targeted small molecule, vismodegib. The elucidation of the molecular pathogenesis of nevoid basal cell carcinoma syndrome has resulted in further understanding of the most common human malignancy.

  18. Use of imaging in assessing lung carcinoma

    International Nuclear Information System (INIS)

    Webb, W.R.

    1995-01-01

    Staging of bronchogenic carcinoma, invasive primary tumors, tracheal or carinal involvement, chest wall invasion, mediastinal invasion, malignant pleural effusion, lymph node metastases, mediastinal nodes, hilar masses briefly discussed (47 refs.)

  19. Synchronous Parathyroid Adenoma and Papillary Thyroid Carcinoma

    African Journals Online (AJOL)

    endocrine neoplasia (MEN) type 1 or IIa.[2] Coexistence ... are affected more frequently than men, especially after ... associated wıth thyroid cancer (i.e., family history, prior ... thyroid carcinoma in recent years in Greece: The majority are.

  20. Proteomic analysis of human oral verrucous carcinoma

    African Journals Online (AJOL)

    Jane

    2011-10-05

    Oct 5, 2011 ... This study is about proteomic analysis of oral verrucous carcinoma (OVC). The total proteins ..... receptor protein (recoverin) through autoimmunity ..... chromosome 8q21.1 and overexpressed in human prostate cancer. Cancer ...